Husband desensitized

Mi

So, a little back story for context. My husband started masturbating at 11 and is now 33. We have been together for close to 3 years now, but he’s never been able to get off with sex. It has to be his hand or a blowjob. I’ve tried talking to him about being desensitized and ways to fix it, but he doesn’t think I’m right and doesn’t want to try. His biggest complaint about doing it is having to go without an orgasm. My ex husband had this issue and after 2 weeks of not masturbating or having an orgasm at all, he was good to go. I asked my husband to try this and he doesn’t want to and says the problem is his weight, not being desensitized. We’re at the point where we want to start TTC but for obvious reasons, that can’t happen right now. Has anyone dealt with this and found a way that doesn’t require going weeks on end without an orgasm?