can't stop hurting

I broke up with my long term boyfriend. We have been together over 7 years. We have a baby on the way. This is not how I planned for this pregnancy and if I knew we weren't going to be together, I never would have gotten pregnant. I can't stop calling or texting him. I can't stop thinking about him. I cant stop thinking about how I have to go through this alone now. It hurts so much.