Advice on fiancé being depressed?

Whitney

So for the past 1 year and a half, my fiancé and I have been trying to conceive. It’s been super hard on both of us but I think it’s truly affected him more than me! I’m so use to the negatives, taking my BBT each and every morning, testing for ovulation but he doesn’t understand that... but anyways the past month, he keeps telling me he wants to move far far away from here(out of state) because he’s sick of people. He even told me he’d leave me here. Last night, he kept telling me he’s worthless and depressed and hates his life.. I told him he’s depressed and needs help... he said no he doesn’t want to see a doctor and if their was drugs lying in front of his face, he’d do all of them.. my question is, does anyone have any advice on helping someone who is deeply depressed and doesn’t want help? It’s starting to affect me and make me miserable. No I don’t want to leave him.. he was there for me when I was depressed but it’s difficult because I knew I needed help.. he doesn’t want it and I’m so worried he will hurt hisself 😢