Literally created an account just to respond to the whole Josh and Aida fertility clinic topic. I jumped ahead because I was so anxious to address it, so sorry if it’s been covered! I’m in a similar situation - my husband had a vasectomy in a previous marriage over a decade ago. (Key difference: he told me on our third date, we always agreed we’d work together on how to have a family, and I’ve never told him he’s less of a man while staring pointedly at his crotch.)
Its been too long for Josh to easily get the vasectomy reversed. It’s a low chance of success anyway, and the tubes etc degrade over time. You can get at remaining sperm with a TESE procedure, which is basically a biopsy of the testicle and they get partially formed sperm from the sample. You can’t really get intact sperm to inject into a woman’s uterus and hope they swim up in there - sperm right from the testes aren’t able to swim in the same way that sperm that’s gone through the whole process has. You pretty much have to do IVF because injecting the sperm right into the egg is the only good way to get them in there.
My heart was breaking for Aika. I’ve been at that doctors appointment and at her age with a low egg count she is not going to have an easy road. We’ve done three unsuccessful rounds of IVF and we’re done, because I’m 35 and my eggs suck. We have a good marriage and it’s been very hard on us. They won’t make it through one round.
