i had my menstruation last august 11, my boyfriend and i had sex in august30 i had a home pregnancy test sept17and i had a period in sept 18 just the next morning. in the month of october menstruation was just reddish/blackish spots in my underware in the month of oct for few days it started oct20.. without sex just masterbating bcoz my boyfriend is away but i am not inserting my finger inside mine.. and we had sex in the 27th day of oct with pull out method. and this nov i didint have my period yet, i remember nov2 just spotting again and my boyfriend and i had sex in nov 10, 16, 17, 18, 21, 23.. with same method as always, since june.. and i remember there are times when we are having sex when he feels like he is coming, he pulls out and the cumm immediately comes out of his penis without even masterbating it.. and when im telling him what if he didnt pull his penis early.. he is always telling me that he controled it and he knows what he is doing.. please help me, i dont know why my period is like that, and i think im stressed because my pimples are coming out and usually i have period every month but the interval of days is not fix.. could i possibly be preggy? helpp mee please.