[My baby Milo]

My baby is one and he uses pads and goes outside. He may do good for a month and then he will use the rugs. I have big rugs under the beds and in the den. I really don't won't to take them up because we have hardwood and it's cold. His pads are clean. I don't get it. He sleeps with us and he always gets up and goes to his pad but this morning he went on the rug on my side of the bed. Ang guess what I stepped in it when I got up. I don't understand why he goes good for a while and then he don't