lilmamanstl2003 repliedNo birth control is 100% effective.

Shaynie L repliedNo. Abstinence is 100% effective, but nothing else is.

The pill is around 92-99% effective.

Condoms are about the same...depending on if they have spermicide or not...you can look all this up by googling it.

Vicky D repliednothing is 100% effective, but using condoms with a hormonal method, like birth control pills is pretty damn close. never heard of anyone getting pregnant while using 2 methods.

MomOfTwo repliedNone ! :)
Though many of them are about 98-99% effective if you follow regularly and properly. But even though you think thats close enough to 100% i would suggest going for using two methods to be extra sure.. like say pills and condom etc.