Has anybody else been given the wrong date by the dating scan? I absolutely know my dating scan is wrong. By LMP I should have been 13+3, however by my dates I should have been either 13+1 or a very minimum of 13, I was dated as 12+3. Which would have put conception as the Monday, however I found out I was pregnant five days after on the Saturday. I appreciate sperm can live for a while as this has happened in my last pregnancy, however it can't be any reason like that because I definitely ovulated on the Wednesday (10 days before bfp) I know this cause I get excruciating pain every time I ovulate (which I've been to doctors for) and I'd say 5 days post conception is a tad too early for bfps. The hospital agree with me that it doesn't make sense and most likely wrong but won't change it, they also said baby was really hard to measure due to the chin being tucked right into chest and bum curled up. I know it's only 4/5 days max but I have a scan booked for 16 weeks by my dates and now I don't know whether to change it or not, I don't want to as I am 100% sure of my own dates.