ttc after his affair

I'm posting in here because there seems to be way more responses in here but off topic. Sorry just desperate to see what other women think.

Married to my husband for 11 years we have 2 daughters.

2 years ago when I was 9 months pregnant he started an affair on fb with an old high school girlfriend. It last 54 days. I have never felt pain like this before.

My husband ended it and we started recovery work. Fast forward 2 years and we are trying again. He is not the same man. We have built an amazing new marriage. He helps other men who have done the same things with guilt and shame so they can become rebuilders.Am I nuts for trying to have another child with him?