I agree with the above post, especially if it was a condom with spermicide.
you missed two days but not in a row? did you take the pill within the 12 hours after missing it? the new pill has a new missed pill time period in which you are still protected. I don't think you have a lot to worry about, your condom broke but you should still be protected from the pill and the chances of getting pregnant from a broken condom are low enough anyhow.