i had a period around aug 26-31 a couple days after that me and my boyfriend had unprotected sex. didnt have a period for the month of sept me and my boyfriend had unprotected sex again sept 28 in now i have a period which started oct 1. i started my period towards the end of aug n didnt have one for sept n started again in oct the first of the month. so i was wondering if their is a chance that i could be pregnant.