Advice needed!

Hello everyone!

So me and my boyfriend were in the middle of trying having sex and the condom broke just as he was going to put it in. I am the most paranoid person out there and I’m terrified that I’m going to get pregnant from his precum (if there even was any that got out when the condom broke) that possibly would have gotten on the outside of my vagina. I know this sounds like I’m just being irrational but I looked it up on a couple of websites and people said that it can happen. I truly don’t want to get pregnant and I have plan b if needed, i just don’t want to take it if i don’t have to. Any support would be greatly appreciated!