Pregnant Advice?

So I found out I'm pregnant yesterday. The dad and I were together and planning; but he went to decorate at my aunts and I've heard from others that he's just not going to come back: as well as loads of lies about me and fake news - to my family.
I want him out of my life; I don't want to risk the baby seeing him come and go whenever he wants like he has with me (this is the 4th time now). 
I plan to not tell him ever and ignore him. Should I do that?