negative pregnancy test

I am so devastated. We've been trying for almost 2 years. I am going to be 32 this month. It is so hard to see friends have babies and you can't even get pregnant. I'm sick of taking a test every month and it shows a negative. My husband is trying to be as supportive as he can be, he just keeps telling me it's going to be OK it's going to be OK. I just don't know what to think anymore. So so hard. Why can't you have something you want so badly. My heart is broken.