I've been suffering from Oligospermia (low sperm count) since 2016. I married my wife in February 2015. Before marriage, I had a casual relationship with few girls. That was something like friends-with-benefits (FWB). I made two girls pregnant in my past. It means my sperm count was good enough at that time. But that was the past, and it can never come back. We've been TTC since 2016, but no luck so far. When we consulted our doctor, she ran some tests. The report said that my wife has no problem, i.e. she's fertile. But I'm the one who has the fault. I've already tried everything to increase my sperm count, but nothing worked for me.
People are suggesting me "sperm donation". Is it the only solution? Does medical science provide any help to me? The problem is that we're still childless, and now we desperately want at least one.