Ok so once in a large generation world i have the husband and wife get pregnant no tricks and when it was time for the birth I put down two cribs and I had a twins, a girl and a boy. The next pregnancy, (because i like to fill the family) I did nothing again and had one which I was happy with and I wasn’t expecting any more. The last pregnancy, I did nothing once more and had three cribs because of the twins and the one baby and I had triplets, a boy, a girl, and a boy. It’s never happened again and I always lay down more baskets then one. But it’s only worked sometimes. Also it’s better to have a home birth and with the cribs lined up press the crib farthest to the left and give birth so there’s room for the next babies. DON’T START IN THE MIDDLE!!! Hope this helped:))