I've been getting that for ages, bubs seems to think the bladder is a trampoline! (to quote another BB member) But I was on my way to my middy yesterday and I just had to keep going to the loo every half hour - DH thought it was very funny. But my middy checked where bubs was and she was fully engaged... no wonder I needed to pee all the time! But she moved out last night so I didn't have to bolt every half hour - only every hour or so...