my LMP was april 10 2011 i usually have 32 day cycle. i think i concieved though on april 27, not sure y just a hunch....i got first positive HPT on may 10 very faint line test sensitivity @25.....went to dr next daymay 11 faint line on urine test blood HCG level at 26 he said come back 7 days next wednesday may 18 blood HCG is now 191.6. we did ultrasound showed nothing . he said last week i was due Jan 17 and that would make me 5 weeks 2 days but i think i ovulated later and am actually 4 weeks 3 days but im not a dr (lol) he said he feels confidant that it is not a tubal pregnancy ,,,the reason i am worried about this is because i had a tubal reversal last april and i know they pose higher risk for eptopic. dr wants to see me back in 6 days says he is sure we will see sac then what do u think?? anyone else with similar exp ?????