7 months prego and alone

The father of my soon to be daughter, Ava. Left me at 4 months pregnant. But let me give you the background. I discovered he was cheating with a girl he previously messed with before. He denied it when I had proof and he begged me to stay with him and I did. Just three days later after his birthday, which I made a great day for him. I discover it's multiple women that he has tried to get with or messed with during the course of our relationship. So I get upset and break a few of his things because I can never understand how you can cheat repeatedly on your pregnant girl friend. He then flips the script and leaves me and tells me to raise the baby on my own and he wants nothing to do with her because I made the choice to keep her when I should have gotten an abortion. He purposely missed all the appointments l. I literally doing it all alone. I was fortunate enough to get my degree in May and full time offer with a great company but I'm not certain of the choices I made by keeping her. He comes back now that I'm 30 weeks and says he wants a family in a few years and that he wants to focus on himself first before anything which is unfair to her. I get so depressed like all the time because of this. I feel alone because no one I know can relate to my situation. All my friends are getting married and having babies with the person they love and I'm stuck being a single mother and when I explain it to him he just want wants to blame me for getting pregnant. His family has taken his side. My family doesn't believe me when I tell them he  is acting this way. What do I do? I'm not a person that handles  stress well at all. It just sucks that it's such a blessing but being treated like a curse.