TTC with busy work husband

I am so frustrated because my husband and I have been trying for 6 months now and just started using this app 2 months ago. When I tell people we r TTC everyone is so excited for our 2nd baby but reality is that my husbands works so much we barely have sex. When we do have sex it feels so foreign and so disconnected and it feels so forced. I hate the feeling and 1 out of 3 times we would stop because he would go soft and he says he's tired. I am understanding and try to be patient but then I am home with my son basically at all times when I'm not at work there would be nights where my husband has all the energy in the world to go out with his buddies and go out till early next morning sometimes which adds to his lack of sleep and "tiredness". I don't know what to do or say anymore. We have had conversations about it but nothing ever changes. I want a 2nd baby so badly it really makes me sad. I know it's 2 issues here. I don't want to give up but we will never make a baby this way.