I cried myself to sleep

I knew TTC would be hard especially with my husbands medical issues. I didnt think it would be this hard. This is the first month we tried to do multiple days in a row. Due to medical issues, it did not go well. I feel it is my fault for pushing multiple days in a row. My husband is 100% on board about TTC and is always optimistic on trying. I just feel like its not going to happen because we are limited in trying. I had a hard time getting him ready last night and it lasted about 30 seconds. I felt awful for pushing him and cried myself to sleep. I feel like TTC is so depressing. I just don't know what to do or if there is anything I can do to make it better for him.