Small or Large families?

I'm kind of in the middle, but in terms of enjoyment, I prefer small. I get stressed trying to handle big families. But, the thing is, that a lot of the times my families end up with four kids either to my boredom or a case of twins or triplets, and I have to figure out how to deal with it or abandon that family. I really want to start having no more than two kids. I just love pregnancy in this game though!