husband's dream job killing our other dream job

My husband loves his job, but he basically spends a couple hours a day in a shop that is basically a sauna one 100°. we haven't been able to concieve, his work is important and he loves it, but it takes sperm 64 days to mature... any one day in that period can kill the mobility just realizing Ttc is not compatible with his job 😅😥😫 anyone else facing something similar