Thanks all for the stretch mark lotions and potions recommendations! Logically I know it's probably all genetic (in which case I'm screwed as Mum had loads and I have been prone to them whenever I've gained weight), but am almost certainly going to chuck some Bio Oil on anyway and hope for the best 
Reading the experiences of Hypnobirthing has been interesting, it's not something I'd really considered. Like others I'm tempted to give it a go now!
Welcome Jade (ahh your DD is adorable!) - I really hope it's not bad luck as I've already got a pile of baby clothes stashed upstairs and we started painting the nursery yesterday!
Yokyil Fingers well and truly crossed here, I hope that all's well.
I felt a bit of a pop last night and then one slightly lower, but doubt very much it was baby making itself known as one was just above my bellybutton and one was a tiny bit below which seems far too high for 16 weeks. Seeing the midwife on Weds so hoping I'll get to hear the heart beat!