No sex drive

I literally have no sex drive since the baby was born, my husband is frustrated. I just don't feel like have sex, I'm usually in pain from my back and the neuropathy. I'm afraid is gonna find it else where, he swears he would never. How do I get it back, it's been, 7 months since my lil pumpkin arrived and we had sex maybe 6 times in that time frame, and I didn't enjoy it. I just did it to make my husband happy.