I stopped taking birth control pills a month ago, I was suppose to start my period on the 23rd and had unprotected sex on the 20th. I am a week late on my period but during the time I was suppose to get it I got cramps and a lot of white discharge.I took a pregnancy test and it was negative but i think i might have taken it too early. Could this mean I am pregnant or is it just a late period from stopping the birth control.