Normally it doesn't matter what brand it is. Also for the most part a positive normally isn't wrong. Normally... It can be, though. Either way get to a doctor! Good luck! And 7hir7een - My boyfriend and I have found out that durex condoms aren't too great. They're a little weak... And they were too little..
-------
AJW, ARW, EMW, & BMW - my life
-Kimey