Gracie is very good on peeing on the wee wee pad , but , when it comes to pooping she poops around the wee wee pad but not on it . Needless to say I am a slave of her area which is at the entrance of my apartments foyer . I take her out about 4 times a week but she will not poop outside. What should I do to get her to poop on the wee wee pad? I do use extra large wee wee pads because she is already 30 inches long.