
Technically he IS right. Chastity is the most effective way to avoid pregnancy. So if he doesn't want to get anyone pregnant, then his chosing method is a good reason.
Also, there's no such thing as a stupid reason to not have sex. If you don't want it, then you don't have to have it. You're not obligated to fuck people, because we're all entitled to our own bodies and are allowed to decide what we want to do with them. You can refuse whenever and for whatever reason. If she doesn't like his choices and not having sex is a deal breaker for her, then she should leave him.

yeah, but what's that mean is he likes sex, or doesn't have a problem with it. He doesn't want because he might have a baby. But sorry, contraceptive methode are kinda good, there is plenty methods, and even if there is a baby (whit the tiny chances), you can always abort. For the pillul, it's up to the girl. So yes the mc girl is a stupid rapist, but the guy's reason is...I don't know how to say it..
It's like you don't want to take any risk in you life because maybe it would go wrong. Okay, then stop living. If you drive a car, there is a chance to have a accident.
Well, Honestly it would be super intresting if the story wasn't like that. (Like a better mc girl, it's kind of a waste, because a plot like that is rare).

I mean, he is being ridiculous if it's about babies. You can stack multiple types of birth control for higher effectiveness (condoms + the pill, for instance), abortions exist, and IUDs and implants are both 99% effective.
Seconding that they should just break up, though. He clearly doesn't want to do anything sexual at ALL right now for completely unrelated reasons, and she's not really supportive of that.

Regardless, she shouldn't be pestering him
about having sex. If all she wants in a relationship is sex, then she might as well become a prostitute(づ ̄ ³ ̄)づ. If he just makes up silly reasons to not have sex then that's fine because everybody isn't always ready to take that next step. She needs to stop trying to force it on him, it's disgusting and rapey
this is a very stupid reason...