What do you call the biological father of your children?
I've heard of baby daddy, sperm donor, and of course ex. When I was pregnant I was talking about a few things with my family and my dad got a little mad and said we shouldn't call him his father because it takes more than sperm to be a dad. I agree.
I refer to him as the milkman. You know, like when milk used to be delivered to houses and babies who didn't look like their fathers were suspected to be bio children of the milkman or mailman. We actually talk to our mailman so it would be weird to call him that. Anyways...what do you call him?