Pregnant and single 💔

Soo basically he waits until I’m 4 months pregnant to tell me he doesn’t know what he wants. He doesn’t want to be together. I’m just completely heartbroken. I’m not the begging or chasing type, so I’ll respect his decision. However, I’m so hurt and disappointed by the way he let me know, that I don’t care to be around him at all, even though I’m carrying his child. He has the audacity to ask about my next appt and I just don’t think I can handle being around him. I don’t care to share precious and exciting moments with him when my idea of what our relationship was going to be like has been completely shattered. It’s too painful. With that being said, how do I move on with my life without completely shutting him out?? I don’t want to be that woman who doesn’t allow the father to be involved. Like do I even give the baby his last name? Lol I feel soo foolish but I’m feeling like he’s undeserving and until the baby is actually here, we don’t need to pretend to be these excited co-parents. we can have a discussion on how he wants things to be after I give birth. I don’t have anyone to talk to. I’m feeling super lonely and just frustrated. Has anyone experienced this before? Just looking for some advice or understanding.