My husband's condom broke. i'm currently on bc and we used a plan b after. i finished a zpack about 10 days ago should i be worried about pregnant?

Unlikely: If you have been taking birth control pills regularly up until this time, then it is unlikely that you ovulated this cycle. Also, using Plan B within a few days of the broken condom decreases your risk. Nothing is 100%, however. You may have some irregular bleeding after Plan B for a little while. Keep taking your birth control pill regularly. Take a pregnancy test 2-3 weeks later to be sure.