No time for sex?

My husband and I have been together 4 years. Married a year and a half. We have a 3yr old. My husband works 7days a week 12 hr days. By the time he makes it home it's dinner, baths and bed. & back up at 5:30am for him to head to work. We feel like we never have time to bd. we are currently ttc. Is it just us?!