Implantation Bleeding: Timing & What to Expect

Implantation bleeding typically occurs 10–14 days after ovulation, which corresponds to days 24–28 in a standard 28-day cycle. It is unlikely to happen eight days before an expected period. This light spotting occurs in only about 25% of pregnancies and is often mistaken for a light period.

Cycle length affects timing: shorter cycles may bring implantation bleeding closer to the expected period. Any abnormal bleeding warrants evaluation by a healthcare provider to rule out other causes.