I've been asked to provide a urine sample from my 2.6 non potty trained DS. They gave us a couple of the bags you stick on inside their nappy but although he is helpfully trying to tell us when he's weed, the bag doesn't seem to be catching it, or not enough anyway. I went to the GP who gave us two more bags but we've just messed up with another one! One left - so what are we doing wrong?
Am I just going to have to take his nappy off and follow him around the house with the bottle?! 