I need your opinion:(

So my boyfriend and I had sex this past Friday and we used a brand new and in perfect condition condom and in case of anything he also pulled out the moment he was about to cum -so basically he cum outside of me in the condom- but he’s being paranoid and is thinking of the “what ifs”, “what if pre cum slipped?” What if this what if that, because we had sex on the second day my fertile window opened and, I don’t know what to think, help :(