Period While Pregnant? Understanding Bleeding in Early Pregnancy

True menstrual periods do not occur during pregnancy. However, vaginal bleeding in early pregnancy is common (20–30% of pregnancies) and can be mistaken for a period.

Possible Causes of Bleeding

• Implantation Bleeding: Light spotting 6–12 days after conception as embryo attaches.
• Cervical Changes: Increased vascularity causes spotting after sex or exam.
• Subchorionic Hematoma: Blood collection between uterine wall and gestational sac.
• Miscarriage: Bleeding + cramping; risk ~10–20% of known pregnancies.
• Ectopic Pregnancy: Life-threatening; bleeding + one-sided pain. Emergency.
• Molar Pregnancy: Rare; abnormal placental growth.

What to Do

Any bleeding in pregnancy warrants medical evaluation. Contact your provider for:

• Quantitative hCG levels (trend over 48 hrs)
• Ultrasound (viability, location)
• Rh factor check (Rh-negative may need RhoGAM)

Do not self-diagnose. Timely assessment ensures appropriate care and peace of mind.