Bf laughed after sex

So tonight me and my bf had sex and after it was over we were making out and he just busts out laughing. Nothing happened (that I’m aware of) and this has never happened before. I’m quite embarrassed and don’t know how to feel. He claims he has no idea why he did it and it was for no reason, had nothing to do with me or the sex, and he knows it’s not normal and wishes he had an explanation. He feels bad. I know it’s probably not a big deal. This has just never happened to me before and idk what to think about it.

Update:

We are going as normal today so everything is good, I guess I’m just not gonna overthink about it.

I have laughed during sex before but not right after and not for no reason but it’s okay I guess lol.