Query: I had an unprotected sex for two days but i'm on the pill and stop the pill a day after is there any possibility for me to get pregnant? or it may be the result of missed in take of pill. The situation: I got my period 21st of march ended last 26th of march, i started taking pill on the first day of my period which is 21st after my period my Bf and I were sexually active and doing unprotected sex. We had an unprotected sex last 30th and 31st of march but im on pill on that dates, however i missed the pill on april 1st and suddenly i got again a period last 6th of April and lasted for 3 days. It is unusual because my period always lasted for 6-7 days and my cycle is 28 days. Why is it like this?