Question:

Dear Pharmacist, If I start birth control pill within any one day of my period, can I start having sex immediately or how many days should I wait before having sex? Does all the birth control pills provide immediate effect or does it take some time to work or does it depend on the brand?

Answer:

If you start the pill on the first day of your period, you are protected immediately. However, if you start on day 2 or later, you should use protection until your next period.

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