And Michael Phelp's mother has never regretted changing her mind

Is this your husband or boyfriend saying this? You definitely don’t want his kids — stupidity is a dominant gene.

Uh-oh, you don't know that the one-night stands he had in the past all resulted in kids.

"In that case, you can go fuck yourself. Wouldn't want to waste them."

OP - What this means is that he has gotten women pregnant in the past, presumably women who did not plan on getting pregnant. Henceforth remember that he has a tendency to do that regardless of if you want children or not. If you are on the pill, at least you are in control of the birth control, if not either get on it immediately or walk away unless you are married to the jerk.

Don't worry, there's more fish in the sea. Just jump back in the dating pool and you'll find yourself a catch in no time.

Wait, how does he know? Has he fathered someone else's kid?

I hope you told him to find a different pool.