It sounds silly but I never knew that how many weeks pg you are is calculated from the first day of your last period...I just presumed it would be taken from ovulation. I got my BFP on tuesday 14th and I have a roughly 30/31 day cycle so I presumed that I would be about 2 weeks pregnant, being that was a few days late. But the first day of my last period was 11th March so it turns out that I could be what 4 or 5 weeks pg! Weird. I feel like I've just 'lost' some weeks. Thing is apart from no and seeing those double lines on a HPT I have no early pg symptoms at all yet so I don't quite believe it yet!
LOL yeah I know, my Mum and Sister both suffered with morning sickness so I know it'll be on its way. I guess I'm still scared I'm not really pg! Having 'lost' a couple weeks is kinda cool though I'm a few weeks closer to a first scan and being able to spread the news!