I last had my period on Feb 13 and on the next day after my period, we had sex with my boyfriend since its valentines day with the pull out method. Few after that, we had sex again without pull out method. We he got it in, I immediately ran to the bathroom and forced try to let the sperm come out from my vagina until it will come out and the next day went on again. Now, I'm having cramps and I feel nauseous. What could this be? Is this a sign of early pregnancy symptoms?