hi    On last month we went for u/s, Technician said by measuring the fetus its 6week 3days and that time we listned the baby HB. but according to the due date it should be 8 week so doc schedule for another u/s after 2 weeks when tech did the u/s today she said their is no sac found no HB found i was very much surprised  and doc said i ill go through miscarage in 2 week, but i ask for another u/s for next week, i'm so worried what to do  till now i don't have any...