A little over a month ago I had unprotected sex around the time I was predicted to ovulate. Well I started my period Wednesday and it was kind of regular but not really. On Friday it got really really light so light that I thought it went off so I didn't use a tampon but a few hours later it started again and it was pinkish red in color. The same thing the next day and today. I kinda hope its implantation bleeding and I'm pregnant but then again I hope not because things are kinda rocky between us. I am not on birth control.