"Birth Defect?" joke

A woman is resting after giving birth to her baby. The doctor comes in to her room, and he says, "I have something to tell you about your baby."

The woman sits up in bed and says, "What's wrong with my baby, Doctor? What's wrong?"

The doctor says, "Well now, nothing's wrong, exactly, but your baby is a little bit different. Your baby is a hermaphrodite."

The woman says, "A hermaphrodite.... what's that?"

The doctor says, "Well, it means your baby has the... er... features...of a male and a female."

The woman turns pale. She says, "Oh my god! You mean it has a penis, and... a brain?!"