I was ovulating and our condom broke took plan b 2 hrs later could i be pregnant?

Unlikely: If you took the morning after pill appropriately it can reduce the risk of pregnancy by up to 89-95%. 2 hours is well within the safe zone. It is unlikely that you are pregnant. You will know if it worked when you get your next period, which should come at the expected time, or within a week of the expected time. If your period is more than a week late, it is possible you may be pregnant.

A/W Dr. Westford.: Plan B One-Step is up to 89 % effective when taken within 72 hours (3 days) after unprotected sex. It can reduce chance of pregnancy by up to 95% if used within 24 hours. It continues to reduce the risk of pregnancy up to 120 hours (5 days) after unprotected sex, but is less effective as time passes.