Pregnancy scare!!

Last night I lost my virginty and I honestly don't regret it. But I'm was unplanned and neither of us thought it would happen but it did..before he put it in I made sure he came first, then cleaned up but the thing is he put it in without a condom and Idk if all the semen was cleaned off of his penis. He only put the tip in and the whole thing only lasted literally a minute tops. But I'm ovulating and I'm scared I could get pregnant. Help please!!!