Poor husband. He must be dying for a shag.

Seriously, talk to your doctor ! Could it be that, he's not doing what you need to get you interested. Are you stressed? Are you depressed, or down on yourself? Are you moist, or have vaginal dryness? That could be a cause also. But your best bet would be to talk to your doctor.
Been there and done that, but worked through it.

Stress is a very common factor, and so is anxiety! You're doing yourself no favours worrying about it. Just go without sex for a while, then relax and see how you feel then. You can't always have the desire for sex!

How long have you been feeling this way? It could have something to do with your hormones and libido which needs to be checked out by a doctor.

Recently had the same problem. I just had a baby via c-section and had no desire. My hubby bought some stuff from gnc called steel libido. Worked like a charm