Me and my boyfriend had sex on the last day of my period which was very very light and he finished in me abd we also had unprotected sex using the withdraw method every other day after and now my period isn't meant to be due for another week and I have started bleeding it started off as what a light period would be for a day or so then was only brown blood when I wiped then on the 3rd day I had heavy bleeding like a normal period. I'm wondering if I could still be pregnant because I have been feeling dizzt the last few days, I have had mild to bad stomache aches, a few headaches, urinating abit more then usual, lower back pain, craving food all the time and have been on a emotional rollercoaster.