I am on estarylla (combination oral birth control) and was just prescribed augmentin for strep throat. will this medication make my birth control less effective?

Many things are possible in life. That said, birth control pill hormones should still be effective. Amoxicillin, Augmentin, Zithromax, and other commonly-used antibiotics do not have a noticeable effect on the workings of hormonal contraceptives such as combination oral birth control pills. The antibiotic Rifampin is not commonly used, but may have an effect on hormonal contraceptives.