Would taking bc powder 845mg often prevent your cycle? i switched from advil to relieve headaches & tooth pain and this month i never had my cycle.

BC Powder: BC Powder is aspirin & caffein, and should not alter your cycle. An infection can, however, and toothache often means a tooth abscess, a serious infection. Pain killers can"t cure an abscess. 2 suggestions. 1) Call Dentist IMMEDIATLY before infection spreads even further, and 2) Call your OBGyn and report your missed period.

Unlikely: Not likely. See DDS ASAP to treat tooth. Get a pregnancy test if sexually active.