I have decided to restart my challenge because I kind of lost track of where I was with the other one, and lost interest. The game was becoming slow and I'm not sure why, and really, I just needed a fresh start. So, without further ado, here is Cora Grier. :)
@lisalittlesimmer If you need more posts to become a full member, I found that an easy way to do so is to play some of the games in the Off Topic forum. :)
I have MCCC and was playing a different save. I have it set to where there's a chance of pregnancy even when you just "woohoo" as opposed to "trying for baby." She ended up pregnant from that and then had twins, much to my surprise. I haven't had many twins (and no triplets) in my 100 baby challenge though.
When this happens to me, I just have the one that already has an A stay home from school the next day and have their twin "Work Hard." and then I age them up together. But like Eminik said, it really is personal preference.