Birth control+Condoms

I believe if you always use protection, she most likely is not pregnant. I have heard of many girls and women lying about taking the pill. So always take care of yourself, never depend on anyone else, Your life is in YOUR hands! 

If you are using both condoms and birth control then it is highly unlikely that she is pregnant. Though the only 100% sure way not to get pregnant is by not having sex, still your chances are very low.

Being late is not that big of a deal. Women are not always right on time every single month. She might have miss counted or got the last date wrong. Even so women who have been like clockwork can still have "off" months.

If it is a concern, just go to the store and buy a home pregnancy test, though waiting a few more days wouldn't hurt.

Hi,
Very very very unlikely...... unless the condom broke and she didn't take the birth control pills regularely.   If you are concerned better ask her to take a simple blood test (that is THE most reliable and THE mopst accurate test). 
Best regards,

No,some cases it is very normal for a woman to be a few days early,or a few days late.don't stress over it.If she is pregnant don't lose your head.comfort her as much as you can and let her know that you love her.If you loose your head and get scared you can mess up a good thing.Put it in Gods hands and you will never go wrong.Good luck

No not at this point if it gets to be more than that like a week or so then worry as with any fourm of birth control it is only 99% effective that 1 % you have to worry about. This is from proven facts on outhr web sites that deal in birth control.