I am 23 years old and I have been actively on birthcontrol for 7 years. I have never had any problems with my pill and always had a "normal" and regular period. This month I ended up bleeding just once, on a Saturday, (wiped, there was blood, put in a tampon and took it out and it was nearly clean) about 4 days before my period. My normal period came, on Wednesday till Friday, for about 3 days (this is normal, first and last days light, middle day heavy) and then the next morning, Saturday, I noticed this fowl odor smelling very fishy. The smell kind of went away about 3 days later, Tuesday, and then in another 2 days, Thursday, I had another irregular spotting incident that didn't last. This morning, Friday, I took a pregnancy test and it was negative and I am wondering what else it could be? I have NEVER had any problems and I am getting very worried! I also just had my yearly check up and I have not switched sexual partners in over a year.