I considered signing up for a vasectomy after our third baby is born — three is a good number for us, I think. The week of not lifting kids or walking unnecessarily during recovery sounds like something better scheduled for when everyone is in school, though. I have my referral; maybe I can call it in in 2020. Meanwhile: maybe someone needs some proven-fertile (and, judging from our kids, smart, energetic and funny) genetic material? I am out of the blood system but maybe qualifying to give sperm is within reach — although an initial web search indicates that Canada doesn't have much of a sperm bank system outside of one operation in Toronto… possibly due to strict laws against the sale of sperm. It seems that all abject terror of markets for sperm has done is atrophy the collection system. I've read about egg donation, and it is kind of terrifying, risky and probably did need measures in place to discourage exploitation of broke people with ovaries. I'm also a bit mystified that there aren't enough potential donors to support a centre in a major-ish urban area. Surely there are many people who are fertile and who wouldn't mind sharing the wealth with people having difficulties or lacking an easier source of sperm. As it is, apparently it is completely legal to buy gametes from the States and abroad: there's something a little off about that.
I don't know that I have any good conclusions, but it is a little odd and frustrating.