Vent- feeling down today

I know everyone has their days where they feel down but today I feel a little bit more down than usual. I usually am optimistic and try to stay positive about conceiving but after three years of trying it's hard to. I had the HSG done and my doctor wants me to go in and she's gonna tell me the results she said during the procedure everything looks normal I'm ovulating normal she also said she might want to restart Clomid. I'm just losing hope because if there's nothing wrong with my husband or myself then why can't we conceive.