How do you get a sim pregnant on sims freeplay?

On the Sims Freeplay

you can't get a sim

pregnant.But

if you want to have a baby you should buy a cradle from the store and if the couple is married you push the button in the cradle and you will have to wait until your next baby but wait you got to wait 24hors for processsim

is ready.When

it is fully ready you press again the button and the baby is ready!