So if you're having trouble making babies, don't worry! People say you have to wait until the children are four to make more babies. But it's a lie. I've made more children when my youngest was two years old. So here is how you do it!
Have one of the adults start making the bed.
Drag the other into the bedroom.
Drag the one who was making the bed onto the other one. If they say, "it's too soon to make a baby" you'll have to wait a while. If it says, "they can't agree it's time to have a baby", its a lie. Keep dragging them onto each other until they finally agree.
The entire time they are trying to make a baby, praise both of them over and over again. They won't say, "stop nagging".
Now you should soon have a baby. It usually won't matter their age. But I tried with them over the age of 48 and they usually stop at that point.