Re: How do I find sims children across worlds?

@Catherinemax2  Invite the other parent to come over with the phone.  Once they are on the lot, ask them to join your household.  If they accept, then you will get a window where you can also bring the child with them.  Select just the child you want to delete and move them into the household.  If it is a baby, then age them up to a toddler by clicking on the crib.  Then go to manage worlds and open the household and delete the child.