Last time I've had unprotected sex and he came in me, was roughly 4 or so weeks ago (I guess if this is my period, I'm late). I just started bleeding, and from 10am one day to 3pm the next day, it was heavy, then nothing but a very light brown discharge which has all together stopped after not even a day of that. I've been nauseous, headachey, and cramping lately, and today I've vomited in the morning. But nothing else. I thought it could have been a miscarriage, but there were no clots or anything like that. Just any ideas on what it could be? Thank you. (: