Hi there! :) I m having an issue with getting my head round conception dates. Had a scan on 7th Sept (couple of days ago). Scan Results: Gestation age of: 11 weeks 2days EDD: 27 March 2018 I ve been doing research and I think that puts conception date around 4th July? I know there s a bit of wiggle room, but I did sleep with someone else on the 14th June. Is the scan accurate enough that I can rule that person out? I was careful with them and I did sleep with someone else on the 30th June and 1st July (which I wasnt careful with), which I m thinking (and hoping) is more likely. I m really just after ruling out the person from the 14th, it s really causing me a huge amount of stress :( (Sorry for the ramble but it s driving me crazy!)