Any advice?

Hello, I'm 21 and I have been engaged for 2 years now. My wedding will be next year in the spring time. Me and my fiance have been trying to get pregnant for a while (well over a year) and it has yet to happen. I scheduled an appointment to see a specialist and I'm kind of embarrassed that the doctor will blow me off because I'm young. I'm also scared that I'll be judged. Is there anyone who saw a specialist at my age? Or a bit younger due to infertility issues? Is there any advice you'd give me before I go? Thanks in advance