Second, females may actually stop emitting male-enticing pheromones after they have mated. This occurs in the gypsy moth, so the pregnant female can flutter away without being pestered by other amorous males (Lymantria dispar).
— From Male animals can 'smell' whether a potential partner is a virgin or not at Sify News.
Interesting article. I am going to control my snarkiness and leave the chuckle inducing puns up to my fellow NST chums.