6 week scan measuring 5 weeks. Sure of dates

[Blinky76]

Just had my six week scan today, gestational sac measures only 5 weeks and only a yolk sac present, no fetal pole or heartbeat. Anyone else had this and things been fine?

We had similar with our twins . We did ICSI IVF so knew our dates exactly. We didn't get a Fetal pole until 6 weeks 2 days and a heartbeat for either of them was not seen until we passed the 7 week mark. We were having scans every few days as I was having heavy bleeds and was told twice to expect the worst , in one case I was told we had lost one baby. At the time the worry kept me up at night.....Our two are now almost 10months old and keep me up at night for completely different reasons

[Babydaze8]

Think I'm out. Latest beta had a doubling rate of 325hrs! Went from 515@25dpo to 705@31dpo! I still can't understand how a gestational and yolk sac was seen on Friday with numbers so low but I think it's time to accept this pregnancy isn't viable :'(