Getting worried..

I'm 20 and a virgin, I semi had sex with my boyfriend putting the tip in and thrusting a little then stopping, note, he was wearing a condom and it didn't break and after he took it off he washed his hands. I don't really have a regular period but they've kinda been regular these past two months. I haven't gotten one yet this month and I'm getting a little worried. Could I possibly be pregnant or is there no way possible?