Last weekend my boyfriend came into town and we had sex. We decided not to use a condom. Its been a week sense yesterday. I keep needing to use the restroom. And I relized that I been eating more then I usually do iam starting to get nausous too. I think I am but not sure I got to wait 3-4 more weeks for my period cause I had sex with my boyfriend the day after my period... Is it all in my head or can I be pregnant?