I did a thread on this recently, didn't get any marks with dd AND I had a huge comedy bump and she was 9lb 10. Got 2 tiny ones round my belly button in the last few weeks (sorry Springchick!).
However, these teenies seem to be spreading and I studied them yesterday and they seem to be going blue . Only 22 weeks as well. Dh said 'never mind it doesn't matter you are married now'. Not sure if I should take this as a compliment or not.