Husband always too stressed with work to have sex!

Everytime we start believing we should try to start a family. We have too many life changes that happen and he is too stressed out at work. He goes soft and we can't even have sex. Wanted to start a year ago but we were too stressed out due to moving and new jobs. Now husband has a new job within the same company and he is stressed. I am 34 and he is 36 and we hardly have sex to begin with he has low testosterone and isn't very adventurous when it comes to sex. How do people manage to have sex when they have demanding jobs?