Cum in me

So I’ve been having sex with someone for a week now n he likes to cum in me he’s came in me like 10 times already since Tuesday. I’m SCARED lol I’m the moment I’m not but after I’m paranoid I don’t want another baby.! I have a iud but it’s still that 1% that gets me worried 🥺 whenever he cums he stays in there for a while n I remember that’s how I made my first baby so I’m like oh hell no 😳