Ugh don't waste your time crying over him because he's not crying over you simple as that....just stay calm and stress free you want be pregnant forever ;)
Focus on what's best for you and your baby. He's not really thinking about you or the baby if he's acting that way. Since you're so far along in your pregnancy, I say try not to stress out because it's not worth it. If he wants to be part of the baby's life, he would make the effort to be there for you. He shouldn't be acting like he isn't about to be a dad.
Focus on u and they baby ur bringing into the world. Trust me. The love u will have for ur baby is truly the best. no man can compete with that. Do what u got to do for yours especially since he seems to not care.
Like your title says. He aint worth it. It doesn't sound like this is the first time either. Block his number or just ignore his calls, enjoy your camping trip the best you can now and enjoy your baby. To often do we allow men to toggle our emotions, we don't owe them that, they have no rights to them. Stand up and if your done with him, then be done. Dunno wjat you had planned as far as last name amd birth certificate, but I wouldn't give him those rights or privileges, nor would I tell him that I'm in labor. Choice is all yours though.