i had unprotected sex with my husband on the 15th and then took the plan b on the 16th. i went to the doctor and he perscibed me birth control piss on the 17th. but i didnt start taking them cuz i wanted to wait till i got my period. well last night on the 19th i had unprotexted sex again( it was stupid i know) and i did not want to go pay 50 dollars for the plan b again so i just started my birth control pills today on the 20th but i took 2 of them cuz i read somwhere u could use birth control pills as EC. what are the chances of me bing pregnat? should i not take the birth control pills anymore till i start my period or contuine taking them sents i started them today?