I can't recommend doing hypnotherapy enough. I did natal hypnotherapy, but I'm guessing perhaps you're in the U.S., so hypnobirthing is the more popular method there. It helped so much and I felt so relaxed. Honestly, birth wasn't that painful. I've had two knee surgeries and a severe case of pneumonia that gave me horrible chest pain every time I breathed for a month - both of those things were painful. Birth was intense, but it was sorta on the level of getting a cramp in your foot. Not pleasant and very involuntary, but contractions are short-lived and then you feel totally comfortable in between. You really can do it. I only used a TENS machine, no other pain relief during birth, and it was really manageable. I would recommend giving him positive natural birth stories to read and also perhaps showing some birth videos that don't show all the gory stuff, so that he can see that birth is a natural, manageable thing and not all blood and screaming like it is on tv. I'd also really just make sure you both talk over your expectations and any fears you might have. I found saying any fears out loud and making a plan for what to do if they came true really helped (for instance, I had a home birth, but one of my fears was having to go into hospital in the middle of giving birth if something went wrong, so we talked over what might happen, how we would feel, how we would handle it and stay calm, etc.). None of those things materialized, but I felt more confident knowing I had a plan if they did and I could just relax and get on with it. I also second hiring a doula.