i dont know what i want anymore!

I'm 34yo and my husband wants another baby. I feel like I'm running out of time. when we got pregnant we said we would have another one right away. but it ended with a C-section. I'm scared to have another surgery, plus I was at high risk and bled almost the entire time. part of me wants another one and part of me thinks no way! should I give him what he wants or what? I wanted my son to be close in age to his brother/sister. took 3 years to get pregnant. he has low sperm count and I'm not sure I ovulate at times. this decision has been driving me CRAZY and I know I have to make a decision soon or it might not ever be possible. help! how would you handle this?