If you have been on Seasonique
for a while, breakthrough bleeding
in general, especially in the second or third month of the pack is not unusual, and can also be caused by the stress
of the infection on your body, not necessarily due to ineffectiveness of the birth control. If you are in the second or third month of the pack, stop taking the pill for about 5-7 days, then restart the same pack and finish it... or throw it out and start a new pack if there are not many left. The time off the pill, as long as it is 7 days or less, may help you rebuild your uterine lining and make the bleeding stop, like your "period" at the end of the three month pack. The decreased effectiveness of birth control with antibiotics, with the exception of certain types that they use to treat TB and other major infections, is largely theoretical. It is safest to use a backup method until you are off the antibiotics, but you are most likely still adequately protected against pregnancy
, especially if you've been on Seasonique for more than one pack.