I had my period on 17th jan. - 24th jan 2013. Then I had unprotected sex on the 10th of February, he came on my stomach and some of it possibly got inside of my vagina, can I get pregnant?

Sure. You had sex. You had unprotected sex. You were trying to get pregnant?

You might be... you might not be. Unprotected sex is a pretty good way to get it done though. Even if he didn't inside you... it's still possible.

Sure you could be pregnant. Sex is how you get pregnant. He doesn't even need to go in to get the job done. It helps, but there are women that have gotten pregnant just by the guy ejaculating near the vagina, rare but it happens. The virgin birth thing isn't such a miracle.

You'll have to wait until your period is due. If you miss it, wait 2 weeks and then test using first morning urine.

If you're not ready to be a mom, then not having sex is the only way to prevent that from happening.

Good luck.