Be glad you aren't waddling! I jsut noticed it yesterday. If I concentrate really hard I don't do it. I am just waiting to start quacking.

I have only had one noticeable BH contraction - that was at 33 weeks, after moving earlier in the week and doing too much.

Don't worry I am sure your body realises. Don't speak too loudly or the floodgates may open on your boobs and you may get continous BH. Murphy's law and all that.

If you are concerned, chat to your midwife or OB.