What Does Early Miscarriage Look Like Identifying Key Signs And Differences

Symptoms and Physical Signs of Early Miscarriage

The primary symptoms of an early miscarriage include abnormal vaginal bleeding, cramping, and the passage of tissue. Unlike a typical menstrual period, these symptoms often escalate in severity and may persist longer, accompanied by systemic effects such as fatigue or dizziness. The distinction between early miscarriage and other gynecological conditions relies on careful observation of symptom patterns, duration, and associated clinical features.

Primary Physical Symptoms and Their Characteristics

Bleeding patterns in early miscarriage differ from menstrual bleeding in several key ways:

Systemic symptoms such as nausea, breast tenderness, or fatigue may also persist or worsen due to hormonal fluctuations, particularly a sudden drop in progesterone, which triggers uterine contractions and tissue shedding.

Progression of Spotting to Heavier Bleeding and Tissue Expulsion

1. Initial spotting (1–3 days)

2. Increased bleeding with cramping (3–7 days)

3. Tissue expulsion and resolution (varies)

Comparison Table: Early Miscarriage Symptoms vs. Normal Menstrual Cycle

Differential Diagnoses: Conditions Mimicking Early Miscarriage Symptoms

Early miscarriage symptoms may overlap with the following conditions:

Clinical tip: A transvaginal ultrasound (to assess gestational sac viability) and serial hCG levels (to evaluate doubling time) are essential for differentiating miscarriage from other conditions.

Role of Hormonal Shifts in Triggering Symptoms

"A critical drop in progesterone (below 10 ng/mL) removes the inhibitory effect on uterine contractility

Medical and Diagnostic Indicators of Early Miscarriage

Early miscarriage confirmation relies on a combination of clinical symptoms, laboratory findings, and imaging studies. Diagnostic accuracy improves with structured protocols integrating ultrasound imaging, serum human chorionic gonadotropin (hCG) trends, and adjunctive tests such as Doppler evaluation or progesterone levels. This section outlines the standardized methods for identifying non-viable pregnancies, including ultrasound criteria, hCG kinetics, and decision-making pathways for suspected early pregnancy loss.

Ultrasound Findings in Early Miscarriage

Ultrasound remains the gold standard for visualizing early pregnancy viability, with transvaginal ultrasound (TVUS) offering superior resolution compared to abdominal ultrasound (AUS) in the first trimester. Key diagnostic features include the absence of a fetal pole, yolk sac, or embryonic heartbeat, as well as abnormal gestational sac characteristics. Measurements such as mean sac diameter (MSD) and crown-rump length (CRL) further refine assessment.

Step-by-Step Ultrasound Interpretation Protocol:
1. Gestational Sac Identification

Confirm presence/absence of a gestational sac in the uterus.

Measure MSD (average of three orthogonal diameters) to estimate gestational age (GA).

Formula: GA (weeks) ≈ (MSD in mm) / 5 + 6 (valid for MSD ≤ 20 mm).

Non-viable criterion: MSD ≥ 20 mm without a visible yolk sac or ≥ 25 mm without a fetal pole.

2. Yolk Sac and Fetal Pole Assessment

Yolk sac should be visible by MSD ≥ 8 mm; absence beyond this threshold suggests miscarriage.

Fetal pole should be identifiable by MSD ≥ 16 mm or CRL ≥ 5 mm.

Non-viable criterion: No fetal pole detected at CRL ≥ 7 mm or no heartbeat at CRL ≥ 5 mm.

3. Embryonic Heartbeat Evaluation

Heart rate (HR) should exceed 90 bpm by 6–7 weeks GA (CRL 5–10 mm).

Non-viable criterion: Absent or <90 bpm HR at CRL ≥ 5 mm or MSD ≥ 25 mm.

4. Subchorionic or Intrauterine Bleeding

Presence of heterogeneous echogenic material within the gestational sac or retroplacental hemorrhage may indicate impending or ongoing miscarriage.

Example Case:
A patient with MSD = 18 mm and no visible yolk sac on TVUS at 7 weeks GA meets criteria for a non-viable pregnancy (MSD ≥ 16 mm without yolk sac is abnormal).

Comparison of Transvaginal vs. Abdominal Ultrasound in Early Pregnancy Loss Detection

Transvaginal ultrasound (TVUS) outperforms abdominal ultrasound (AUS) in detecting early miscarriage due to higher resolution and proximity to the uterus. Below is a comparative table of efficacy, limitations, and clinical applicability.

Parameter	Transvaginal Ultrasound (TVUS)	Abdominal Ultrasound (AUS)
Detection Sensitivity	~95% for MSD ≥ 2 mm; fetal pole visible at ~6 weeks GA (CRL 2–4 mm).	~70% for MSD ≥ 5 mm; fetal pole typically visible at ~7–8 weeks GA (CRL 10–15 mm).
Success Rate in Early Miscarriage	98% accuracy for non-viable pregnancy diagnosis (e.g., empty sac, no heartbeat).	85% accuracy; limited by bladder-dependent imaging and lower resolution.
Limitations	Patient discomfort or cervical stenosis may restrict access. Operator dependency; requires specialized training.	Obese patients or full bladders reduce image clarity. Delayed detection of early miscarriage (e.g., missed heartbeat at <6 weeks GA).
Clinical Recommendation	First-line modality for suspected miscarriage (<10 weeks GA).	Supplementary or when TVUS is contraindicated (e.g., active infection).

Key Consideration:
AUS may suffice for heterotopic pregnancy (coexisting ectopic + intrauterine pregnancy) or late first-trimester miscarriage (≥12 weeks GA), but TVUS is preferred for early viability assessment.

Serum hCG Trends in Early Miscarriage

Human chorionic gonadotropin (hCG) levels provide critical prognostic information in suspected miscarriage. In viable pregnancies, hCG doubles every 48 hours in early gestation (pre-embryonic stage). Deviations from this pattern—particularly plateauing or declining levels—strongly suggest non-viability.

Expected hCG Decline in Miscarriage:

Normal viable pregnancy: hCG rises by ≥66% in 48 hours (mean doubling time: 2.1 days).

Early miscarriage: hCG declines by ≥35% in 48 hours or <53% over 72 hours.

Missed miscarriage: hCG plateaus (≤10% change over 48 hours) or declines by <20% in 72 hours with a non-viable ultrasound (e.g., empty sac, no heartbeat).

Diagnostic Thresholds:

hCG <5 mIU/mL: Miscarriage highly likely (no detectable gestational sac on TVUS).

hCG 5–20 mIU/mL: Repeat TVUS in 48–72 hours; no visible sac confirms miscarriage.

hCG ≥20 mIU/mL: Gestational sac should be visible on TVUS; absence suggests ectopic or non-viable IUP.

Example Scenario:
A patient presents with hCG = 120 mIU/mL on Day 1 and hCG = 80 mIU/mL on Day 3 (a 33% decline). Combined with a TVUS showing an empty sac (MSD = 15 mm), this confirms an early miscarriage.

Missed Miscarriage Criteria:

Ultrasound: Empty gestational sac with MSD ≥ 25 mm or CRL ≥ 7 mm without heartbeat.

hCG: Plateau or <10% increase over 48 hours with non-viable ultrasound findings.

Adjunctive Diagnostic Tools: Doppler Ultrasound and Progesterone Testing

While primary diagnostic tools (TVUS + hCG) suffice for most cases, Doppler ultrasound and progesterone levels offer supplementary insights in ambiguous scenarios.

Doppler Ultrasound in Early Pregnancy:

Indication: Assess umbilical artery or fetal heart activity when gestational sac is visible but fetal pole is indeterminate.

Findings:

Absent or reversed end-diastolic flow in the umbilical artery suggests fetal compromise (e.g., missed miscarriage).

No detectable heartbeat at CRL ≥ 5 mm confirms non-viability.

Limitation: Doppler sensitivity decreases at <6 weeks GA; not routinely recommended for isolated viability assessment.

Progesterone Levels in Miscarriage Risk:

Progesterone <10 ng/mL at 4–6 weeks GA correlates with higher miscarriage risk (sensitivity ~90% for predicting loss).

Progesterone ≥25 ng/mL is protective against early miscarriage in most cases.

Clinical Use: Progesterone supplementation may be considered in recurrent miscarriage or luteal phase deficiency, but it does not alter outcomes in acute miscarriage diagnosis.

Diagnostic Pathway Flowchart (Textual Representation):
1. Initial Presentation:

Symptoms: Vaginal bleeding/spotting, cramping

Emotional and Psychological Manifestations in Early Miscarriage

Early miscarriage is not only a physical experience but also a profound psychological and emotional challenge that can manifest in ways distinct from grief over a viable pregnancy loss. While both involve profound sadness, the abrupt and often unexpected nature of early miscarriage—typically occurring before 12 weeks—can trigger unique emotional responses, including shock, guilt, and existential questioning. Hormonal shifts, societal stigma, and relational dynamics further complicate emotional processing, often delaying or intensifying distress. Understanding these psychological manifestations is critical for healthcare providers, partners, and individuals to recognize signs of distress and implement supportive interventions.

The emotional toll of early miscarriage extends beyond immediate grief, as individuals may grapple with feelings of failure, isolation, or even relief, depending on their circumstances. Unlike later-term losses, early miscarriages are frequently met with minimal societal acknowledgment, which can exacerbate emotional suppression. Below, the psychological and behavioral indicators of distress are explored, alongside the physiological underpinnings of mood disturbances and strategies to mitigate relational strain.

Psychological Distress Signs and Their Distinction from Viable Pregnancy Loss Grief

Early miscarriage often elicits psychological responses that differ in intensity, duration, and presentation compared to grief over a viable pregnancy loss. Key distinctions include:

Denial and disbelief: Individuals may struggle to accept the loss due to its unexpected timing, particularly if the pregnancy was unplanned or only recently confirmed. This can manifest as repeated testing, seeking second opinions, or avoidance of discussing the loss.

Guilt and self-blame: Common themes include perceived responsibility for lifestyle factors (e.g., stress, caffeine intake) or fears of having caused harm to the pregnancy. Unlike later-term losses, where guilt may stem from medical complications, early miscarriage-related guilt is often tied to internalized societal expectations of maternal competence.

Anxiety and hypervigilance: Fear of recurrence or future fertility issues may lead to obsessive research, avoidance of sexual activity, or excessive monitoring of bodily symptoms. This differs from the more linear grief progression seen in viable losses, where anxiety often centers on the child’s hypothetical existence.

Existential questioning: Some individuals experience a crisis of meaning, questioning their purpose, relationships, or even the value of future pregnancies. This is less common in viable losses, where the connection to the child’s imagined future provides a framework for processing grief.

These responses are not linear and may overlap with depressive symptoms, complicating diagnosis. Healthcare providers should assess for persistent distress beyond the typical 4–6 weeks post-miscarriage, as prolonged psychological symptoms may indicate complicated grief or depression.

Behavioral Changes Indicative of Emotional Strain

Behavioral shifts often accompany the psychological distress of early miscarriage, serving as observable markers for loved ones and clinicians. These changes may reflect coping mechanisms, avoidance, or physiological responses to hormonal fluctuations. Recognizing these patterns can facilitate early intervention and support.

• Social withdrawal: Individuals may isolate themselves from friends, family, or support networks, citing exhaustion or a desire for privacy. This withdrawal can stem from shame, fear of judgment, or an overwhelming need to process emotions alone. Unlike viable pregnancy loss, where social support is often more readily available, early miscarriage-related isolation may be exacerbated by societal dismissal of the loss.
• Sleep disturbances: Insomnia or hypersomnia are common, often linked to hormonal disruptions (e.g., progesterone withdrawal) but also to intrusive thoughts or emotional numbness. Sleep patterns may further deteriorate if the individual avoids routine due to grief or anxiety about future pregnancies.
• Changes in appetite or eating habits: Loss of appetite or compulsive eating may occur, reflecting both physiological stress and emotional numbing. Hormonal shifts can alter taste preferences, while psychological distress may lead to neglect of self-care, including meal preparation.
• Increased substance use or self-soothing behaviors: Some individuals turn to alcohol, nicotine, or other coping mechanisms to numb emotional pain or manage anxiety. This behavior may escalate if stigma prevents open discussion of the loss, leading to self-medication as a primary coping strategy.
• Neglect of personal hygiene or self-care: A decline in grooming, missed appointments, or disregard for physical health may indicate severe emotional distress. This contrasts with viable pregnancy loss, where individuals may maintain routines as a form of stability.
• Repetitive or compulsive behaviors: Engaging in excessive cleaning, organizing, or other ritualistic activities can serve as a distraction from overwhelming emotions. These behaviors may also reflect a need for control in an otherwise unpredictable situation.
• Emotional numbing or dissociation: Some individuals report feeling detached from reality, as if observing their emotions from a distance. This can interfere with daily functioning and may be misinterpreted as a lack of grief rather than a coping mechanism.
• Agitation or irritability: Mood swings, frustration, or outbursts may occur due to hormonal fluctuations or exhaustion. Partners and family members should recognize these as symptoms of distress rather than personal failures.

These behavioral changes are not exhaustive but highlight the breadth of emotional responses. Clinicians should screen for persistent or severe manifestations, as they may indicate underlying mental health conditions such as depression or anxiety disorders.

Hormonal Fluctuations and Their Impact on Mood

Hormonal changes following early miscarriage play a significant role in exacerbating mood swings, depression, and anxiety. The abrupt withdrawal of progesterone and estrogen—hormones critical for maintaining pregnancy—can trigger physiological and psychological symptoms akin to postpartum depression but distinct in timing and presentation. Below are key hormonal effects and their implications:

The rapid decline in progesterone and estrogen post-miscarriage disrupts neurotransmitter regulation, particularly serotonin and dopamine, which are linked to mood stability. Estrogen withdrawal may reduce brain-derived neurotrophic factor (BDNF), a protein associated with resilience and emotional regulation, while progesterone’s anti-anxiety properties diminish, increasing susceptibility to stress responses. Additionally, prolactin levels may remain elevated, contributing to fatigue and emotional blunting. These hormonal shifts can mimic or worsen symptoms of major depressive disorder (MDD) or anxiety disorders, complicating differential diagnosis.

Key hormonal influences include:

Progesterone withdrawal: Leads to increased anxiety, irritability, and sleep disturbances due to its sedative and anxiolytic effects.

Estrogen decline: Associated with reduced serotonin activity, heightening risk of depressive symptoms and cognitive difficulties (e.g., brain fog).

Prolactin elevation: May persist longer than expected, contributing to fatigue, reduced libido, and emotional numbness.

Oxytocin fluctuations: While oxytocin typically promotes bonding, its sudden absence can leave individuals feeling emotionally adrift, particularly if they had begun to attach to the pregnancy.

Hormonal effects often peak within the first 2–4 weeks post-miscarriage but may linger for months, especially in individuals with a history of hormonal dysregulation or mood disorders. Healthcare providers should monitor for these symptoms and consider hormonal support (e.g., short-term progesterone supplementation) in consultation with a specialist.

Impact on Relationships and Coping Strategies

Early miscarriage can strain relationships, particularly between partners, due to divergent emotional responses, communication breakdowns, and unmet needs. Unlike viable pregnancy losses, where couples may have shared expectations or a visible "loss," early miscarriage often lacks a tangible point of reference, leading to misunderstandings or unresolved grief. Below is a table outlining common relational challenges and evidence-based coping mechanisms:

Relational Challenge	Description	Coping Mechanism
Communication breakdowns	Partners may avoid discussing the miscarriage due to fear of reopening wounds, differing levels of distress, or cultural stigma. One partner may seek closure through conversation, while the other withdraws.	Establish structured check-ins (e.g., weekly 15-minute talks) to share feelings without pressure. Use "I" statements (e.g., "I feel overwhelmed when...") to reduce defensiveness.
Role confusion and resentment	If the pregnancy was planned, one partner may feel abandoned by fate, while the other may struggle with guilt for "failing" to carry the pregnancy. Resentment can arise if one partner seeks immediate emotional support while the other needs time.	Reaffirm shared values and future goals through joint activities (e.g., counseling, writing letters to the pregnancy). Avoid placing blame; focus on mutual healing.
Sexual intimacy strain	Fear of recurrence, physical discomfort, or emotional detachment may lead to avoidance of intimacy. One partner may initiate contact to reconnect, while the other may perceive this as pressure.	Communicate physical and emotional boundaries Differences Between Early Miscarriage and Other Conditions Mimicking Pregnancy-Related Symptoms Early miscarriage shares overlapping symptoms with other gynecological and obstetric conditions, complicating differential diagnosis. Accurate distinction is critical to avoid delayed treatment, particularly in life-threatening scenarios such as ectopic pregnancy or molar pregnancy. This section systematically contrasts early miscarriage with ectopic pregnancy, molar pregnancy, fibroids/polyps, implantation bleeding, infections, and clotting disorders, emphasizing clinical presentation, diagnostic markers, and management urgency. Comparison of Early Miscarriage and Ectopic Pregnancy: Pain Patterns and Urgency Early miscarriage and ectopic pregnancy often present with abdominal pain and vaginal bleeding, but their location, intensity, and associated symptoms differ significantly. Ectopic pregnancy requires immediate intervention due to the risk of tubal rupture, while early miscarriage, though distressing, is rarely life-threatening unless complicated by hemorrhage. Key distinguishing features: Pain characteristics: Early miscarriage: Typically diffuse, cramp-like pain in the lower abdomen or pelvis, resembling menstrual cramps. Pain may radiate bilaterally or centrally. Ectopic pregnancy: Sharp, unilateral pain localized to one side (often the affected fallopian tube), exacerbated by movement or palpation. Pain may worsen abruptly if rupture occurs. Bleeding patterns: Early miscarriage: Heavy or light bleeding with clots or tissue passage, often accompanied by a sudden gush of fluid. Ectopic pregnancy: Irregular spotting or light bleeding, sometimes described as "rust-colored" or brownish, with intermittent heavy bleeding if rupture is imminent. Associated symptoms: Ectopic pregnancy: Shoulder pain (referred pain from diaphragmatic irritation due to intra-abdominal bleeding), dizziness, or syncope if hemorrhage is significant. May present with missed periods despite a positive pregnancy test. Early miscarriage: Nausea, breast tenderness, or fatigue may persist initially, but symptoms resolve as the pregnancy ends. Urgency of intervention: Ectopic pregnancy: Requires emergency medical evaluation (e.g., ultrasound, hCG monitoring) due to the risk of rupture, which can lead to severe internal bleeding within hours. Early miscarriage: Typically managed conservatively with expectant or medical management unless excessive bleeding or infection develops. Diagnostic confirmation: Transvaginal ultrasound: In ectopic pregnancy, the gestational sac is visualized outside the uterus (e.g., in the fallopian tube), while in early miscarriage, it may appear empty or with an intrauterine pregnancy (IUP) showing signs of degeneration (e.g., no fetal heartbeat, irregular gestational sac). Serum β-hCG levels: In ectopic pregnancy, hCG levels rise more slowly or plateau compared to a normal intrauterine pregnancy. A discriminatory zone (typically >1,500–2,000 mIU/mL) where an IUP should be visible on ultrasound but is absent suggests ectopic pregnancy. Molar Pregnancy vs. Early Miscarriage: Clinical and Pathological Distinctions Molar pregnancy (hydatidiform mole) is a trophoblastic disease characterized by abnormal placental development, leading to excessive hCG production and distinctive ultrasound findings. While it may initially mimic early miscarriage, its progressive symptoms, hCG trends, and tissue characteristics differentiate it clearly. Visual comparison of key features: Feature Early Miscarriage Molar Pregnancy hCG levels May rise initially but plateau or decline as pregnancy ends. Levels typically do not exceed 100,000 mIU/mL unless complicated by retained tissue. Exponentially elevated (often >100,000 mIU/mL), with persistent or rising levels despite clinical signs of miscarriage. Levels may exceed 500,000 mIU/mL in complete moles. Vaginal bleeding Dark red or brown bleeding with clots or tissue passage. Bleeding is usually self-limited over days to weeks. Prolonged, painless, dark red bleeding with grape-like vesicles (hydropic villi) passed per vaginum. Bleeding may be heavier and more persistent than typical miscarriage. Ultrasound findings Empty uterus or degenerated gestational sac without fetal poles. Possible subchorionic hemorrhage or intrauterine clot. No snowstorm appearance or cystic structures. "Snowstorm" appearance (diffuse echogenic pattern) due to hydropic villi. Absence of fetal structures despite high hCG levels. Theca-lutein cysts (bilateral ovarian cysts) may be present. Tissue passed Fetal or placental tissue with recognizable structures (e.g., embryo, chorionic villi). "Grape-like" vesicles (hydropic villi) with no fetal parts. Tissue appears translucent and cystic on gross examination. Complications Risk of infection, hemorrhage, or retained products. Rarely progresses to gestational trophoblastic neoplasia (GTN). High risk of persistent trophoblastic disease (PTD) or choriocarcinoma if untreated. Requires hCG monitoring and possible chemotherapy. Management Expectant, medical (misoprostol), or surgical (D&C) based on bleeding severity. Surgical evacuation (D&E or suction curettage) followed by serial hCG monitoring until levels normalize (<5 mIU/mL for 3 consecutive weeks). Pathological confirmation: Histological examination of passed tissue reveals: Early miscarriage: Normal placental or fetal tissue with signs of degeneration (e.g., fibrin deposition, villous edema). Molar pregnancy: Hydropic villi (cystic, edematous chorionic villi) with trophoblastic proliferation (incomplete mole) or marked villous swelling (complete mole). Fibroids and Polyps Mimicking Early Miscarriage: Bleeding and Diagnostic Differentiation Uterine fibroids and polyps can cause heavy bleeding with clots, often mistaken for early miscarriage, particularly in the first trimester. However, their ultrasound appearance, hormonal dependence, and lack of pregnancy-related symptoms aid differentiation. Key distinguishing factors: Bleeding characteristics: Early miscarriage: Bleeding is accompanied by cramping, tissue passage, or sudden gushes of fluid. Clots are often dark red or brown. Fibroids/polyps: Bleeding is heavy, prolonged, and cyclic (e.g., menorrhagia), with large clots but no tissue passage. May occur before or after a confirmed pregnancy. Associated symptoms: Fibroids: Pelvic pressure, urinary frequency, or constipation due to uterine enlargement. May cause painful intercourse if submucosal. Polyps: Irregular bleeding (e.g., postcoital bleeding) or infertility if obstructing the endometrial cavity. Ultrasound findings: Early miscarriage: Intrauterine gestational sac with or without fetal structures, subchorionic hemorrhage, or empty uterus. Fibroids: Well-circumscribed, hypoechoic masses within the myometrium (subserosal, intramural, or submucosal). Acoustic shadowing Recognizing the signs of an early miscarriage involves a multifaceted approach, balancing physical observation with medical diagnostics and emotional awareness. While symptoms like cramping and bleeding may initially resemble a heavy period, key differences—such as prolonged duration, tissue expulsion, or abnormal hCG decline—signal the need for professional assessment. Beyond the clinical perspective, addressing psychological and relational impacts is critical, as stigma or delayed recognition can exacerbate distress. By integrating symptom awareness, diagnostic precision, and compassionate support, individuals can navigate this challenging experience with informed clarity and resilience. FAQ What does an early miscarriage look like when it happens in the toilet? An early miscarriage in the toilet may appear as light to heavy bleeding with clots, sometimes containing small tissue fragments. The blood can be bright red or dark, and you might pass a gestational sac or embryo (though this isn’t always visible). Clots may vary in size—some resemble grape-like clusters. Pain or cramping may accompany the bleeding. What does an early miscarriage look like when it comes out of the body? During an early miscarriage, you may pass tissue that looks like dark red or brown clots, sometimes with a small sac (the gestational sac) or a tiny, pale embryo (about the size of a grain of rice or less). The tissue can resemble menstrual clots but may be larger or irregular. Bleeding is usually heavier than a normal period. What does an early miscarriage look like at 2 weeks after missing a period? At 2 weeks after a missed period (around 4 weeks pregnant), a miscarriage may show as spotting or light bleeding with small clots, or heavier bleeding with tissue passage. You might see a tiny sac or embryo in the blood, but it’s often too early for distinct features. Cramping can feel like strong menstrual pain. What does an early miscarriage look like at 4 weeks pregnant? At 4 weeks, a miscarriage often appears as light to moderate bleeding with clots, sometimes containing a small gestational sac (a tiny, pale, oval structure). The embryo may not be visible yet, but you might pass tissue resembling a tiny sac or a speck of grayish material. Bleeding can mimic a heavy period. What does an early miscarriage look like at 5 weeks on an ultrasound? At 5 weeks, an ultrasound may show an empty gestational sac (no embryo), a collapsed sac, or no fetal pole where one should be. There might be fluid in the sac but no detectable heartbeat. A miscarriage is confirmed if the sac measures larger than expected for the gestational age or if there’s no embryo. What does an early miscarriage look like on an ultrasound before 6 weeks? Before 6 weeks, an early miscarriage on ultrasound may appear as an empty gestational sac, a sac without a visible embryo, or a sac that’s too small for the expected stage. There might be no fetal pole or heartbeat, or the sac could look irregular or collapsed. A sonographer compares measurements to gestational age to confirm. early-miscarriage-symptoms hormonal-fluctuations miscarriage-diagnosis pregnancy-loss-signs reproductive-health Leave a Comment Name Comment Post Comment Comments are moderated before appearing. The data you submit is processed according to the Privacy Policy of Voltefac.