Heartbroken

I’m in need of encouraging words! After 3 years, he’s decided to tell me it’s over. I’ve always been there for him through it all. And all he seems to do is chose other women over me. And I feel stupid cause I always take him back. This time I was pregnant, and lost the baby, and he didn’t even call me to check on me or anything. When we finally spoke he told me it was over and that he is with someone right now and has been talking to her for a while. I lost it! I question my worth now, I do t feel good enough. He always seems to leave me alone and broken. He crushed my soul. I don’t know where to start. I just want this pain to leave. Any advise please!!