DD is almost 18 months and for the last few days her nappies have got full much quicker than normal and leaked out the side.(Just talking about wee here not poo!) I read that one of the signs of getting bladder control is going from a dry nappy to wet very quickly. (During the night this hasn't happened). Any ideas/advice? could there be something else wrong? Do I just need bigger nappies?! Had decided not to start potty training her until at least age 2 as I am expecting DC2 in 4 months, but at this rate I will need to start changing her practically every hour.....