I am no exception to ingrained homophobia. It is, hopefully less so now, part of many children's upbringing and while mine wasn't overtly homophobic, an amount was picked up. Not that it stopped two out of the four of us kids turning out to be gay.
An example of mine would be the other day when I was reading a magazine feature on lesbians with children. Several couples were profiled. From memory most had produced a child after several years of being together, but one couple had a child after only three years together. Note the word only. I thought, hmm, that is perhaps a bit too soon. I reckon perhaps five years minimum for a gay couple to be together before having children by whatever method they choose.
Now why do I think like this? Would I think like that if it was a straight couple? Of course not. Especially not if they married and then months later had a child. Perhaps I think like this because gay relationships are less stable than straight ones (from a pretty low base rate, I must say) but surely if two people commit to having a child and bringing it up together, it shows they at least have commitment to each other, their future and the child.
Whatever way I look at it, my thoughts were wrong but at least I do a bit of self analysis. There is no reason that a gay or lesbian couple can't have a child in whatever way they choose after months of being together.