Missed period on birth control

Krystal

I went to the Dr on Sept 5, he prescribed me birth control pills. I started taking them the next day. At that point, I was already over 30 days late. He had done a urine test, and I was negative for any suspected pregnancy. I have PCOS, and the BC pills were to help regulate. I had a regular period for 11 months prior to this date. However... I am now 60 days late and almost done with my week of 'placebo' pills (when I should be on my period). I've already picked up my next months script, but I'm wondering, is this normal? Should I call and talk to my dr?