As for the question posed by the OP, like others I'd probably want to use up any frozen sperm from IVF after DH died, & would be comfortable if he wanted to use a frozen emby (although I don't think he'd want to do this). I wouldn't harvest sperm after his death unless we had been about to start fertility treatment & he'd already consented. I can understand a woman wanting to keep a piece of her husband alive after his death.
I have a question: what happens to sperm from donors after they die? Are sperm banks notified when donors die so they can destroy the sperm?
"...dreaming of a belly full of life..."