Freaking out!!!

I just got a call from my doctors office telling me that my ob is going to be out of the office for the entire month of December!!! I have one more biweekly appt and 3 weekly appts scheduled with her and now they have switched me to someone else... I'm Sure it will be fine but I was so much more comfortable with the idea of having my baby with the same doctor that has seen me the entire pregnancy... she knows me and my body.. now I'm going to be with someone I have never met... ugh