Sex education for Second Grade

In a second grade sex education class,

Little girl: Can my momma get pregnant?
Teacher: How old is your mother?
Little girl: Fourty
Teacher: Yes, your mother could get pregnant.
Little girl: Can my big sister get pregnant?
Teacher: How old is your sister?
Little girl: Nineteen.
Teacher: Yes, your sister certainly could get pregnant.
Little girl: Can I get pregnant?
Teacher: How old are your?
Little girl: I'm seven years old.
Teacher: No, you can't get pregnant.

The little boy behind the little girl gives her a poke and say, "See, I told you we had nothing to worry about."