The pill effectiveness

Elizabeth • I’m so in love J💍💛

How effective is the birth control pill? I take my pill at 7:30 5/7 days a week, atleast. i’m on a combination pill, and read somewhere that as long as you take one pill a day you should be protected from pregnancy. I was just wondering how effective the pill really is, because i’ve recently had unprotected and was wondering just how worried i should be. thank you, please be kind. :)