Uhm, the situation is quite complicate, and I will not try to give advice, because I don't have the necessary experience (despite I'm your same age).
I'll just point out one thing that rings a bell in my mind. Despite your husband's idea that you quit work until you get back on track may sound reasonable, you should keep in mind that depression is an unknown and UNPREDICTABLE DISEASE. What if you don't get well in 6 -12 months as expected? What if you get WORSE?
The financial burden would be on him more and more, and that would make you feel guilty. His family would cry out at your lazyness and he may deplete his patience. Moreover, if you quit working, it will be even harder to start again, unless yu recover, but recovery is not guaranteed.
My suggestion is that you keep working if only you can. You should only quit if you get seriously impaired, but it doesn't seem to me the case (don't want to belittle your suffering, believe me).
It seems to me that whatever therapy you may be doing, working will not be an obstacle. If you quit job you'll be in hurry to heal, and hurry doesn't help... well, I suppose my point is clear.

The best of luck