"Three Women" joke

Three women at the doctors office. The first one goes in to see the doctor. When the doctor goes to examine her he notices a big Y on her chest.

The doctor asks, " Why do you have a big Y on your chest?"
She replys, " Well, my boyfriend went to Yale and when we make love he likes to wear his college sweater."
The doctor nods and continues on with the next patient. When he examines her he notices a big H on her chest.
Agian, the doctor asks, " How did you get a big H on your chest?"

The woman replys " My husband went to Harvard and when we make love he likes to wear his college sweater."
The doctors just nods his head and continues on with the last patient. As he examines her he notices once again that this woman also has a letter on her chest. A large M.
He says, " Dont tell me, your boyfriend went to Michigan?"
" NO" replys the patient " But my girlfriend went to Wisconsin"