Hi.
Relax, please. Your anxiety can be felt by your baby. It's good that you care about what's happening but you aren't helping your situation by worrying too much. Find a woman who is a bit older than you preferably someone who just gave birth. Get some advice as to what you can do to relax. Yes, that's not a doctor and your situation may be different but then again, another thing you need is a kindred spirit, one who can have a good idea of what you're going through while at the same time holding your hand.
You can also search the Net for sites that really deal with the clinical side of pregnancy. You may need some hard, clinical facts.
Pray a lot. I think you'll find that listening to God and staying in His presence will not only calm you but make you stronger.
Oh, call the doctor. Maybe, just maybe there may be a change of schedule and he can suddenly fit you in.
Please take care.
Erick