Need advice ASAP!!

Alexis
So I came off my period on the 13th of February, lost my virginity on the 18th of February, and haven't had a period since. He did not cum in me and was only in for about a minute or two but we're both kinda worried. I have no symptoms other than the missed period, which is normal for me considering I usually always go months in between them. I mean I obviously know I have a chance of being pregnant since his dick was inside me, but should I really worry?