Thistle try not to worry. I'm so embarrassed but it turns out that I thought I'd been feeling kicks for the last 3 and a half weeks, but then I had my first kick on Friday (when I was 21+2) and it was a completely different feeling to what I had felt before (which i'm guessing was just stretchy cervix/general insides stretching)
I think (TMI - apologies) that the movement is causing me a bit of wind, so its taken me until today to be sure that it's definitely the baby moving but i'm pretty sure now that it is. It feels like my whole tummy flipped over, and my DH could feel it yesterday too. It actually makes me feel slightly nauseous but hopefully that'll pass as I get used to it.
Merry Christmas Eve everyone - some last minute shopping for me, making cupcakes and Christmas Photobooth props, before heading out for drinks (single for me, plural for DH) with our friends as its a Christmas Eve tradition - made all the easier this year as there is no arguing about designated drivers or getting taxis.