Lost birth control pill, need to know what to do ASAP!!!!

[hbbearh]

All the instructions to taking birth control pills only tell you what to do if you forget to take your pill. Well, I'm a genius (said sarcastically) and I lost one of my birth control pills. It was my last active pill before I begin taking the reminder pills. I don't know what to do. I need answers as soon as possible please. I'm at a total loss. Can anyone help me?

[4leaf clover]

Use a backup method (i.e.) condom if you're sexually active. Otherwise, Don't sweat it and be ready for your cycle about 6-8 hrs early.These things happen.