I Accidentally Skipped My Placebo Pills For My Birth Control

I accidentally skipped my placebo pills for my birth control last month (end of july), and started a new pack instead. I decided to just continue the new pack. I've run out of active pills now and am on the placebo week for this pack (august). Am I still protected from getting pregnant? Also, I'm not sure if I'll be able to get a refill until the week when I should have had my placebo week. Will this cause any problems?