My Sims got pregnant, had a baby boy. They had that baby for an in-game day or two, then I had her get pregnant again. I had her take a pregnancy test and she came back pregnant. Then a few in-game days later, she gave birth to a second baby boy. About 2 in-game days later, the first baby boy went through the automatic aging process. Then immediately after, the 2nd baby boy did, too, as if they were twins. But I don't want them to be twins... Especially since the 2nd baby hasn't had as much time to bond with the parents as the first baby.
I've noticed this happens when there are multiple children in the home and it's really frustrating. It doesn't happen at just the infant stage, either.
