I have been on the pill for almost five years. Two weeks after I had sex, I got my period but it was a little different than normal. It was shorter by a day or two and it wasn't as heavy as normal. I am really afraid that this is implantation bleeding because I read that it usually happens around when you get your period. I always thought that implantation bleeding was very light almost not noticeable in a pink or brown color, but I also read that sometimes people get heavy bleeding as well. I had normal red blood and it was enough to fill at least two tampons. A few days after my period ended I had discharge just like I normally do BEFORE my period. I have never had this happen after. I take my pill before bed around the same time everyday but sometimes it varies by a couple hours. Am I pregnant?