I'm hurting.

I'm so aggravated. I lost my baby 3 years ago. Left the "father" after he put me into a miscarriage. I've been in a relationship that lasted a year after that. NOW I'm with another guy. He's already got a child. He's a lil gangester. But he treats me better than anyone else I know. 
Don't get me wrong, he's an asshole too.  
Are they all assholes? 
But that's not the point. The point is, I'm still grieving over my 1st baby. When I got pregnant I was in no condition to bring no one into the world. I was 18. Broke. Being physically and mentally and abused. But I STILL WANTED MY BABY. Long story short, the baby didn't make it. Maybe because he was throwing me around like a rag doll. So lost it. I'm STILL HURTING. I WANTED MY BABY. I still want me baby. 3 years later. Crying every month. Begging our god to give it to me. But he won't. And now my partner is mad at me for greiveing. For wanting a baby. I can't take his baby as my own because he says it's not me place. 
Y'all, I just want my baby. 
No one understands. I have 2 people in this world that I KNOW love me. My grandparents. They've raised me since I was two. 
Their old. I NEED SOMEONE ELSE. My best friend got murdered almost 2 years ago. I just want me baby guys. 
Please give me some advice.