Funny story

In a nursery 2 class, a little girl asks, "Teacher, can my Mum get pregnant?"
Teacher: How old is ur mother?'
Little girl: she is 40
Teacher: O yes she can get pregnant.
Little girl: Can my big sis get pregnant?
Teacher: How old is your big sis?
Little girl: She is 19
Teacher: Of course ya sister can certainly get pregnant
Little girl: So wat of me, can I get pregnant?
Teacher: How old are you, dear?
Little girl: I'm 5 years
Teacher: No, dear,u can't get pregnant
Den,d little boy behind d little girl gives her a poke&says, 'See, I told u we had nothing 2 worry about!