I had a scan today. I should be 7 weeks and 6 days. I had light spotting on Saturday and nothing else since but the midwife thought it would be advisable to have a scan anyway.
Went for the scan and they can see the yolk sac and there's something in it but it's not 7 weeks 6 days iyswim.
I've to go back in a week because
A) I'm not as far on as I think
B) the baby has stopped growing
Has this happened to anyone before. I've gone back to work after the scan and it's all I can do not to weep at my desk 
My periods are regular which made the midwife a bit
because that would suggest it's a miscarriage 
Has this happened to anyone before?