Can you get pregnant from having sex right after your period ends?

In general, the first few days following menstruation occur before theovulation period, so the chance of pregnancy is relatively low—but unexpected conception can still occur. Couples wishing to avoid pregnancy are advised to use contraception consistently. Pregnancy cannot be entirely ruled out immediately after menstruation ends, becauseovulation typically does not occur right after menstruation concludes. A woman’s ovulation usually occurs approximately 14 days before the onset of her next menstrual period. After being released from the ovary, an egg can survive for 1–2 days within the fallopian tube, awaiting fertilization. Meanwhile, sperm can remain viable in the female reproductive tract for 2–3 days. Consequently, conception is most likely to occur in the days surrounding ovulation—termed the “fertile window” or “ovulation period”—which spans the 5 days preceding ovulation, the day of ovulation itself, and the 4 days following it, totaling 10 days.

Some women have shorter or irregular menstrual cycles, which may lead to earlier-than-expected ovulation—even occurring toward the end of menstruation. Since eggs retain fertilizability for up to 1–2 days after release, conception becomes highly possible if sperm are present during this time. Therefore, women who wish to avoid pregnancy during this phase should employ reliable contraceptive methods.