I made an experiment on how to give birth to multiple children (twins, triplets) so you can have them usually if you want many children. My hypothosis starting to be proven correct. If you want to help this experiment, wait until you have twins/triplets. Have one of them take over the family, have them married, and when they have their children, post pictures of the family tree. Tomorow, I will post my pictures of my Very very successful family, for they have a third generation twin. (In the past three generations, I've had successful twins!)
If you join in, thanks! Sorry if this has been done, I haven't seen it yet.