Hi becky,
Rest assured im also 27 weeks now and my boobs have just started to leak! which was abit of a shocker for me.... even though i knew it would happen. As for how big you are try not to worry to much because every women is different and have different size bumps. You see im harldy big at all mine is only little, but if your concerned talk to your mw and see what she says. I see mine on the 26th and im going to ask her.As every other pregnant woman ive seen is huge compared to me!
so ill hopefully talk to you in August Mums!!!!! haley. x