Tangential to my last post, but related, I do think Discord didn't actually want kids when he had Minx. Fluttershy wanted a kid, and he wants Fluttershy to have everything she wants. Having the kid was an impulse decision he made to make Fluttershy happy.
This was not a good idea, and he did have a panic moment where he realized he'd just saddled himself with responsibility he didn't want.
But now that she's here, he does love her. She's so much like her mother, how could he not? But he also was smart enough this time around to decide not to have another either.