What to expect?

My husband and I have been trying to conceive for about 3 years now. No BFP ever!!! I was on birth control (the pill) for about 5 months in my teenage years. My periods are normal. We have not been to a doctor. But we plan to. I'm so beyond scared of what they will say. I don't think I ovulate because I never see any cm. EVER!! What will be the first thing the doctor will test? I don't know what to expect. I'm so scared. I don't want to be judged.