An appointment at the gynocologist

Harold wakes up out of a deep sleep and, feeling amorous, nudges his wife awake and asks, "Why don't we get it on, eh?" She replies, "I have an appointment at the gynocologist tomorrow and you know I don't like to make love the night before." "Alright", he said, and he rolled back over and started to go back to sleep. A few minutes later, he nudges his wife again and asks, "You don't by any chance have a dentist's appointment tomorrow, do you?"