Plan B?

Hello all!  I had sex on the 5th and noticed, before he came, that there was a hole in the condom.  Obviously we pitched it and got another one, however, I have only been on the pill 7 days leading up to that encounter.  To be safe, I got Plan B the next day.  According to Glow I only had a 10% chance of getting pregnant anyway, but I worry nonstop. I should be okay, correct?? My gyno will not insert an iud as emergency contraception. Thanks!!