Hcg Levels at 443

Ok so I'm due mid June, Hcg numbers are rising, but not doubling. Just left from getting blood work done for the forth time. I'm really tired of all this. I thought that I would have just went in to get a blood test done to confirm pregnancy and now it's turned into a nightmare. I can't wait until tomorrow to find out the results. I pray so hard that they have quadrupled and not decreased. I really wasn't worried about it until my doctor made a big deal about it. They kept telling me I was further then what I thought, but I obviously wasn't far at all to begin with. I'm seriously thinking of changing doctors, because I don't think I should be having all of this extra blood and stress done. What do y'all think? He is making a huge deal out of it, and they don't know how far I am to begin with. I know I'm 4 weeks pregnant as of yesterday. He thinks that I am 5 weeks with low Hcg levels.  Opinions please!!!