Fertility doc UPDATE

Going to fertility doctor tomorrow in 10 hours for the first time!! So excited, been trying for 3 years. Any advice on what my husband and I should ask? I'm 27 he's 36

I was hoping it would be a hormone thing and could get fixed easily but I saw my blood test results and they're all in the normal range. I go in Friday for an ultrasound and then Monday to talk about the results of both. Wish me luck! I really want to know what's going on.