Its not that I'm holding it on purpose, sometimes I just can't go when I feel like I need to. I've been like this even before pregnancy, I think my bladder just gets a bit shy! But can holding my wee for short periods of time (I can usually go after about an hour or so) harm my baby? Its not all the time usually when I'm at work and rushing to pee cos I have to get back on shift! I'd say it happens about twice a week xxx