You came to work not paying attention to your sore stomach for your period. You didn't want to take time off.

Felix (your boss) noticed this and called you to come to his office

Felix: "Are you feeling well?" "Yes sir" You answered, holding your stomach Felix got up from his chair, pulled your hand, and you fell to his lap Felix: Shh... It will end soon... Felix noticed that you were holding your stomach and immediately put the facts together. He started massaging your belly