A–Z Glossary

Gestational sac

The first fluid-filled structure of an early pregnancy seen on ultrasound.

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Early pregnancy diagnostic approach

Early pregnancy diagnostic approach

Why early pregnancy diagnosis is stepwise Early pregnancy can be difficult to diagnose because normal symptoms overlap with premenstrual changes, gastrointestinal illness, stress, and irregular cycles. Even in a medically supervised setting, the first evaluation rarely answers everything at once. A stepwise approach reduces the risk of missing an ectopic pregnancy or misclassifying a very […]