If dh and i split and i had a head injury that would cause we to want more children and dh hadnt met anyone else. Id consider asking him.
But if he had a new wife and family lol heck no.
If dh's hypothetical ex asked him to father a hypothetical sibling for their hypothetical child... And we were married and had our children already. No dice.
Mumma to two beautiful boys on the spectrum and one special little girl.