So recently I had to take in sugar gliders because my uncle couldn’t take care of them anymore.. but aside from that he forgot to tell me there is 1 female and 4 males! And the female is pregnant which was also not explained to me. I’m not sure how to find the baby daddy, any tips would be appreciate (they are all sexually mature and I think my uncle wanted to breed them but was poorly educated I’m going to get them all fixed after I figure out who the daddy is and get separate cages or rehome some of the males)

I'd just pick one male, neuter him, and put her and him in a separate cage - keep the other three males intact and in their own cage in case you'd want to breed more later with her or any of her daughters...

Doesn't really matter which was the father

The baby, or babies, will be in mom's pouch and both/all need to be away from so many males! Watch the babies as they emerge for any males (Joey) as they must be fixed once mature (or removed) before any females (Joy) can get pregnant.

Bless you