am i just being paranoid ??

me and my boyfriend had sex and we went for about 3 rounds, he changed condoms each time and we were very safe, but in the heat of the moment he did put it inside me for a couple of seconds without a condom but he didn’t finish inside, it was really just in for a few seconds and out and that was the end of it. i’m mainly worried because he had finished before then with the condom on and he said he wiped the excess semen off after taking off the condom, i also had put it in my mouth a little before he put it inside (tmi im sorryyyy). i doubt any excess semen would’ve stayed on his penis after that but i need someone else to verify that for me because im very paranoid and i really don’t want to be pregnant. question is, what are the chances of me getting pregnant right now?