I feel like I can’t do it anymore

I’m sorry to post this here but I just wanted to get this out of my chest. My husband is infertile and we have been married for 8 years and obviously not kids, he didn’t know he was infertile until 5 years ago and we got devastated. Last year he got a surgery on his testicles because he had varicose veins and maybe with that surgery his low sperm count will get better. But nothing had happened and I’m about to lose it:( I’m 35 and he is 36 I feel like my clock is ticking.. sometimes during night i cant sleep because I got anxiety 😥 my husband doesn’t believe that i have anxiety sometimes. I just started to think of ending my life. I feel terrible for even thinking that. I feel alone with this. My husband occupied all his time working and at night he seems like he doesn’t want to talk to me. During dinner I talked to him about my day and I asked about his day and he just tell me “it was ok” and that’s and then he just doesn’t want to talk. I asked him what’s going on and he said: “nothing “ and start using his phone all night watching videos on fb. I feel alone right now. I do things to, work during the day and work out at our little home gym. But I’m not ok. I’ve told him how I feel but I feel like he doesn’t care. Idk what else to do to occupied my mind, i do have a dog and play with him almost all the time when im at home or even taking to the park when I’m off. Idk what to do to feel well. Im just down and depressed.