How many babies?

I mean, they don't stay babies. I usually keep them that way for a week Sim time, or so. But most of them end up with 3-9. Some have more as the older ones move out. Most I've had as babies at once is 7 in a household. I did do 100 baby challenge too, but it took 3 generations, so most an individual sim had was 52 if I remember correctly.