fear of needles. help

So I have missed two periods but I have still gotten only negative pregnancy tests. I have a doctors appointment in almost two weeks and I'm afraid that if my urine test comes out negative they will want to do blood work.
Just the thought of needles puts me in a deep panic (I have had trama with needles in the past) last time I had to get a shot I couldn't hold anything down, sleep or sit still the whole weekend before my doctors appointment. What's going on and what do I do?