What are the chances of getting pregnant after missing 2 pills & doubling pills few days?

you should try the shot instead. but anyways, yes you have a chance of being pregnant. if you were having any unprotected sex during the month AND he came inside you, you're chances could be good. To me it sounds like you have been taking your birth control so irregularly that pregnancy would definitely be a possibility. Wait to see if your period comes but if not go get a home pregnancy test and find out.