ex problems

Is it wrong to block my ex number. I'm pregnant all he's cause is emotional distress he's been in and out and left me saying it wasn't his calling me names and saying I'm stupid and an idiot for keeping it. He's parents are also mind controlling him and telling him I'm not the girl for him because I'm selfish and kept my baby. He told me I treat him like shit and That he doesn't want to be with me and hasn't talked me me and ignores me. I feel lost and idk what to do other than block him I'm 18 weeks and I got a DNA test for his parents and all they've done is given me a hard time. I just don't know what to do anymore I need some advice 😞