14 weeks, just found out my bf has been cheating

I’m so lost right now. We been together 5 years, we planned this child, we prayed for this child. Now I️ find out he’s been cheating on me and sleeping with another girl and he actually has feelings for her. I’m so heartbroken, I️ don’t know what to do or think. I️ never thought I’ll be a single mother but idk how I️ can ever forgive him. Life is just so dam weird, one minute you’re so happy you are finally blessed with a baby and the next your whole world comes crumbling. I’ll just had to pray God gives me the strength because my little one needs me. :(