Hello and congrats on your pregnancy.
My name is Sabhel. The only thing I could suggest is call your doctors office and ask to speak to his assistant or nurse.
Leave a message on there voice mail with your concerns and someone should call you back. If they feel there is a urgency for you to be seen due to post injuries they should call back and get you in earlier if they feel its needed.
If they do not feel the need for an earlier appt they should explain why as well to ease your concern and hopefully be able to answer any questions you called on.
enjoy your pregnancy and congrats,