Hi, I'm the first week into my birth control for the month (I've been on birth control for almost 2 years now). I just finished my period a week ago. Two days after my period ended my boyfriend and I had sex (without a condom) I have been bleeding for 2 days now. It's a brownish color but it wipes red. It's not that heavy, but nor are my periods. I also have been having some cramps. I have changed my diet to gluten-free about 2 weeks ago. so, that might be the problem or could I be pregnant?