Early Pregnancy Signs: Spotting & Irregular Periods – Is It Possible?
Bleeding in Early Pregnancy ≠ Period
True menses cannot occur during pregnancy. However, ~25% of pregnant women experience bleeding in the first trimester, which can be mistaken for a period.
Common Causes of Early Pregnancy Bleeding
- Implantation bleeding: Light pink/brown spotting 6–12 DPO; lasts hours to 2 days.
- Subchorionic hematoma: Blood between chorion and uterine wall; may resolve or increase miscarriage risk.
- Cervical ectropion: Friable tissue bleeds after intercourse/exam.
- Miscarriage / threatened miscarriage: Bleeding + cramping; hCG trends, ultrasound needed.
- Ectopic pregnancy: Bleeding + unilateral pain; emergency.
- Molar pregnancy: Rare; heavy bleeding, high hCG.
Action Steps
- Take a home pregnancy test (urine hCG) – highly sensitive by missed period.
- If positive or uncertain, contact your clinician for quantitative serum hCG and transvaginal ultrasound.
- Rh-negative women need RhIg if bleeding occurs.
Early evaluation distinguishes viable pregnancy from complications and guides management.
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