I have had 2kids and didn't have any with either. It doesn't mean anything as when I had a VE I was 3cm (not in labour with no1) and with no2 I was 4cm with no pain what so ever. I think ryatha is right. Your probably getting them but not feeling them. Often women are hooked up to the CTG (for monitoring bubs heart rate) and it picks up BH and tightenings when the woman isn't feeling them.