New baby ??

[johnnycat]

Little Johnny returns to school after missing a couple of days. The teacher knows his mother was pregnant and asks, Did your mom have a baby? Little Johnny says, was it a wagon? The teacher says no...Did your mother have a boy or a girl? Little Johnny says, was it a bike?? The teacher pauses and asks, did your mother have a miscarriage? Johnny says, yes...I knew it had wheels.