Boyfriend left me pregnant for another women

My boyfriend of 3 years left me a month after finding out I was pregnant for another women who 7 months later he is still with. I haven’t seen him since July. He hasn’t contacted me for a few months until this week he reached out to me. He’s asking to be in the delivery room and to take the baby on the days he is available.

Listen he hasn’t came to any doctors appointments, doesn’t even know my due date (hasn’t asked), didn’t offer or buy the baby one thing so far.

I personally don’t feel comfortable with him taking a newborn baby with a female he left me for who he now lives with. I don’t want to be looked at as some bitter baby mother. You can’t just pick and choose when you want to be a father. I haven’t seen him for MONTHS why on the day of labor and delivery I have to be in a room with him??! I don’t feel comfortable doing that at all.

Can anyone give me some advice on what’s best for me son & me? I don’t want to do anything I will regret in the future.