LSF1977 you've gotten good advice here so I will just reiterate it.

A support group is a great idea while waiting for a spot in therapy. Most peer support groups I know are free and allow spouses or family members to attend to help with understanding and support. In the USA we have DBSA ("Depression and Bipolar Support Alliance") and they are very helpful for me. There are also many other groups that meet in my area. See if you can find something local to you.

Also take care of yourself. Walk, bath, good ideas. Hopefully help is on the way if you are already on a list. Hopefully it will not be too long.

Good luck to you and your husband.