Okay, so, QUICK QUESTION!
Traveling to the future via the ITTF time portal is a no-go. A future full of ordinary humans you can conveniently disappear off to, and come back with new household members or unborn children? Continuity Issues. You don't know if humanity has a future yet.
But what about the Ambitions Time Machine, which allows you to travel into the past?
Using the Ambitions Time Machine also has a small chance of your sim returning with surprise kids.
Asking for a friend...
https://i.imgur.com/elXIytB.jpg
