M.S.
I always wanted 4 children. I grew up with just my brother and me and we both wanted another sibling to tag along with. However, having 3 would mean a middle child. And I definitely didn't want the middle child syndrome. When I had my first baby around 2 years I was ready to have another baby, it took almost another year to get pregnant which for me was devastating. Then I got pregnant with twins. When the twins were almost 2 years old I started holding a lot of babies. Other people's babies to see if I would long for another child. I never did, that is how I knew that my family was complete. So I have 3 kids, but I don't have a middle child. Anyway, my suggestion is to hold a bunch of other people's babies. If it makes you long for another one then you know that you would like to have another baby. If you enjoy the baby while you hold it, but are completely okay with giving the baby back to it's mommy then you are done.