Hello, I am a 31 year old female. My menstrual cycle is 28 to 33 days mostly .as per my lmp I am 8 weeks pregnant. And I got a positive pregnancy test at 42 days of lmp. When I went fir a scan on the same day very miniature gestational sac was there so I was advised a rescan after 2 weeks. After the recant my gs was 11. 7 mm in mean dia but no yolk sac and fetal pole seen. And again. A rescan is ordered after two weeks. I am very confused please advise.