The option I'm talking about is under Pregnancy options and it's "Newborn Gender". It's set to "Balanced" by default but somehow it always means "just boys lol". Random makes it random and able to be influenced by fruit again.
This is odd b/c in my game, I have it set on "balanced" and I always get a balance of genders. For me, it's always girl, boy, girl... and so on. Maybe it's one of those things like snow days and school. I never, ever get snow days, but there are people whose sim children rarely go to school in the winter b/c of snow days. : /