How many days does it take for the birth control pills to be effective enough to have sex without a barrier or protection.its my first time to take it?

Most wait a month: The pill works by tricking your body into believing you are pregnant so you don't release eggs. Most docs recommend you wait a month before going barrier free, although some pills suggest they work within 2 wks. Given the importance of the issue to you, you can decide which road to follow.If there is even the remotest chance their could be a STD involved, ever, double coverage is always better.