Suggest Opinion On Taking Augmentin And Chances Of Pregnancy

Today during intercourse the condom broke, i am currently on birth control as well as augumentin. After we saw that the condom had broke, we went to the pharmacy and got the PlanB pill. Do i have a higher chance of pregnancy because i am on augumentin? should i stop taking the augumentin until further notice? what effects does augumentin have on the PlanB pill?