Ok so, me and my bf had sex without protection the day i ended my period and he came in me bt then we did it again the next night and he came again. I got rlly nauseous in the car a day after the last time and I was cramping rlly bad the day after tht. Please help.... I had rlly bad headakes today and it's been the 3rd day since the last time. Could I be pregnant?