Opposite Sex Drives

My husband and I have been together for 7 years. He has always had a lower sex drive than me. Mine is quite high and I could do it every day if he was willing lol, but I’m lucky if we have sex even once a month. It’s been almost 2 months, because I’m not counting the last time we tried a couple weeks ago when he couldn’t keep it up and apologized that he was too tired. He did try to make sure I was satisfied but I kinda just lost interest at that point and we stopped. He has dealt with low testosterone for a long time and I know that plays a big part along with always being tired and stressed as he’s the sole provider for our family so I can be home with our children. I’m kind of upset he hasn’t tried to seek help or do anything about his testosterone levels. Physical touch and sex/intimacy are really important to me and that’s how I like to show and receive love, and he knows that, but he couldn’t care less about either of those things. I’m just feeling sexually frustrated and sad, especially since I’m currently pregnant with baby #2, all the feels and emotions are hitting harder. Any advice is appreciated🩷