Aging Down Adult to Teen

IF you use mods, you could just skip the whole having them become young adult part. Without mods, I believe you could still take your teen sim into CAS and use "Play with genetics" I think.
Seems like it would be the simplest way to have a teen parent.

Teens cannot be used as genetic donors in MasterController's Play With Genetics feature, trying to do so causes the screen to freeze though there are workarounds to avoid that. Is there a Play With Genetics on EA's version of CAS? I thought it only shows up on CAH (Create a Household), not for already existing sim households.

I have never tried to age down a sim. Did not even realize you could do that.

I aged down a whole heap of my ready-made adult and YA sims for a 'puberty' challenge on another forum. It was a lot of fun and allowed me to explore facets of their personalities they'd never revealed before.

If the OP wants her teen to have a baby, she can't make it in CAS anyway.

I have from the store, door of death and life and when my adult Sim died, the grim reaper brought him back from the grave as a baby

i know! after the girl has the baby, age her back down into a teen, it works for me but only with cheats. 1st, do ctrl + shift + C to open the cheatbox. next, type testingcheats true/on,if it says "cheats enabled" you did it right. then, type cas.fulleditmode, it should make it so that you can age down sims that are not pregnant. last but not least, shift click on the sim *shift + click* and select "Modify In CAS" and change her into a teen. if it does not keep her as the mom, it might be that there is somthing with my game keeping her the mom, or somthing with your game making her not the mom anymore.enjoy! have fun!

oof!!

@rosepicker - This thread is about TS3 and is on the TS3 section of the forum. Your solution is for TS4.