Alone at 7 months

I’m 7 months pregnant and my baby’s father decides now he wanna disappear . He blocked me on everything ! And expects his mom to keep in contact with me . He claims the reason why he’s acting this way is because I didn’t “ hold him down “ and he also expects me to give my daughter his mom name and his last night ; he claims Im the reason why he’s like this , like I don’t have mood swings !’ he’s also younger than me .. idk what to do !!!