Hello, I would be happy to help you with your question.
can have an effect on cycles and cause irregular bleeding, but this is unlikely to be a factor in this case in the setting of the birth control that you are on. Clindamycin
has no effect on its effectiveness either and is likely not the cause of the abnormal bleeding.
The bleeding is likely just "breakthrough" bleeding related to thinning of the uterine lining that occurs while you are on birth control. Make sure you check a pregnancy
test and wait and see if it goes away for now.
I hope that this helps and good luck!