Steps to getting checked?

Hi, my husband and I are going to get checked for infertility next month and I was just wondering what are the steps. Did you get checked with a fertility specialist or just a normal doctor? What kinds of tests would they do? I'm sorry. I'm lost. I get a lot of anxiety when I don't know what's going to happen and I really like to get an idea of what we can expect. I'm not sure if I'm in the right group. We've been trying for a year and a half and some experience/insight from others who have been through it would be helpful.