I was going to say the same thing as others about the position of the placenta. Normally that has a lot to do with it.

If it makes you feel any better, I remember going to my ob appointment at about 20 weeks and gushing about the amazing things I could feel and my ob told me it was probably just gastric bubbles etc! Yeah, go on, just burst my bubble why don't ya? He reckons that it is a myth to feel it before the 23 week mark.

I said that the next time HE is pregnant he can tell me whether he thinks its a myth. Tut.

You will feel the little one soon enough. I know what its like to be waiting and waiting for it. Does open up a whole new can of worms though, because you start to worry when you don't feel them moving as much, and the little one is probably just having a snooze.

Best of luck!