virgin sex???? HELP

Hi girls my boyfriend and i did some sexy stuff earlier this afternoon. We didn't do any intercourse (still a virgin lol) just dry humping, oral and hand sex. He came and his cum was on his tummy. I unconsciously sat on his tummy lol my informations are minimal.... can someone please fill me infos about chances of me getting pregnant? My period's irregular ever since though it's been 2 months already since my last period THANKS