any one else ever had these levels or experience???

well my LMP was April 10 2011 and I usually have a 32 day cycle . I think i concieved on April 27th. I got first very faint HPT positive on May 10th then another the morning after so i went to see Dr that day(May11) and they sent me to hospital for HCG level it was 26 . Yay we are pregnant :) ......Then we had another HCG level pulled on May 18 one week later it was 191.6 they did an ultrasound anyway and didnt see anything yet . Well its May 24 we had an ultrasound and saw the sac ...no fetal pole yet no yolk yet so he sent me in for HCG level and it was 849.68. So he said that he is surprised he even see the sac on ultrasound yet being usaually level has to be 1200 before a sac is seen . the sac is not in the tubes so that is a great thing :) my levels doubled every 72 hours as they should have so that looks promising as well. he is slightley concerned the sac was not perfectly round but he said it is just forming at those levels so actually that could be perfectly normal. he scheduled an ultrasound to be done at the hospital friday morning and another HCG test . The hospital has a newer better ultrasound machine and he feels he will get a better picture . We are hoping for the levels to be over 1700 and to see a sac with yolk present. I have not had any bleeding and have had no cramping so things are looking promising . I will keep updating if anyone has any feedback please feel free to post and please please keep us in ur prayers :)