issues with baby's father

Bridgette
So recently me and my child's father haven't been speaking he blocked me from talking to him about our son came to find out he have a new girlfriend & my baby shower is on the 19th I invited him to come but I'm not expecting him to show up or anything. I just need advice on what to do about this when my baby gets here I don't know what's bound to happen.. I've tried to include him in doctors appointments and everything concerning our son now I just totally give up of trying I'll let him come to me when he's ready to be a man I also was thinking about filing for child support I'm just so sick of him thinking he can just leave & not have no type of responsibilities I am due march 11th