Hello! maybe someone can help. I missed my period 2 weeks ago and took a pregnancy test, which came out negative. Since then i have had a LOT of discharge, often with blood in it. i have also had a very strong odor down there. at first it wasn't too bad, but now it smells very fishy and my boyfriend said he noticed it. i even have to change my underwear during the day because it is so strong. i'm getting really worried. what could this be?