When too leave the nest...

Well I’m 20y/o & im still at home with my mom

( my preference ) well I’m expecting my first child in a few weeks & my child’s father wants me to move out of my moms and in with him, only problem is I have severe separation anxiety when it comes to being away from my mom for extended periods, I’ve suffered with epilepsy my entire life & my mom has been the only person I trusted with my life everyone else just panics & so does he so I’ve just gotten accustomed to staying here with mom. What should I do? Please no judgement