my boyfriend is worried that i could get pregnant after having sex four days before my period. i have always had a regular menstrual cycle of 28 days. i always ovulate on the 14th. i've never had an irregular cycle. i also took postinator 2 right after having sex just to be safe. my period started normally bu he is worried that i still might be pregnant. is this reasonable? can this even happen? and if it does who does it usually happen to.
thank you. i look forward to your reply