I'm secretly Pregnant

Just gonna start this post off from the beginning..

I met "Riley" my 9th grade year. I added him on facebook, bc I was into the bad boys back then, and I'd always here his name over the announcements. We started talking, we had a class together, and quickly realized how much we have in common. We became best friends. I had a crush on him, but everyone did as well. He graduated a couple years ago, and I moved about 45 minutes away. We snapchatted, flirted, we even went into the talking stage. I moved back when I found out I was pregnant, he wasn't the father. We didn't have sex until after I found out I was pregnant. We kept everything on the fwb level. I didn't want anything more, neither did he. Not then anyways. Fast forward to this summer, he was hella strug out on meth, and I gave him an ultimatum. He goes to rehab or I'm done. He went. He came back, apologized, wanted to work shit out and be w me. I gave him the last chance I'd swore I'd give him. We fuck, he dead ass asked me if I wanted him to pull out. I told him yes and he said too late. And he's done it 4 times since then, without Me knowing until after. I'm not on birth control. He knows that. We decided to go on a road trip last week, and we talked. I told him I'm more than likely pregnant. He said, your getting an abortion. I told him, no were going to keep this child if I'm pregnant. Then he tells me, fine but you'll hate me and you won't ever want me around our child, I'll put you through hell. I told him, I'm already raising one baby on my own, I don't think I can do 2. He told me I BETTER figure out how too. I found out I was pregnant last night, and ring ring ring. He calls me as soon as I see the 2 lines pop up. He asked me if I was pregnant, I didn't tell him I was testing or anything. I told him, don't worry about it. His response was, alright good I don't have to be a ass hole to you, wanna hang later. Man, it took me everything not to scream. But I'm really lost. I don't know what to do. Abortion nor adoption Is in the picture. And it's not like there's many more options. Another thing, when he says he'll treat me like shit. He has before, and messed me up in the head. He'd call me tell me he sees me and pretty much stalked me. Made me think I was going crazy. It was scary. And I don't know if I can handle it again. Someone please help me.