Pregnant and been left by my cheating ex


I was with my ex for almost a year told him I was pregnant when I found out he was excited then 4 weeks ago I find out he’s been sleeping with someone else and he’s actually moved in with her all through our relationship he controlled me constantly checked up on me accused me of cheating, now he’s with this other women he’s denying our baby and he’s blocked me on everything like that’s going to make our baby disappear, has anyone been in a situation like this and if so any advice would be great x