Hi, I've got a 5 month old little girl. I have used potty pads from the day she came to me at 12 weeks. I don't have access to a garden so I trained her to go on the pads when she was in her x-pen. She has full run of apartment now as she has been trained to go into a doggy potty tray lined with a potty pad out in the balcony. I have tried soooo many times to get her to go when out on walks but she insists on going in her tray!!!!! In a way I am glad as the weather in England can be very unpredictable and I wouldn't want to venture out in the freezing cold with Milly to potty! Good luck with yours