Birth control pills start working depending on when you begin taking them in your menstrual cycle and the type of pill:
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Combination pills (contain estrogen and progestin):
If you start taking the first dose within the first 5 days of your period, the pill is effective immediately. If you start at any other time, it takes 7 days for the pill to become effective. During those 7 days, using a backup method such as condoms is recommended. -
Progestin-only pills (mini-pill) :
If started within the first 5 days of the menstrual cycle, it works immediately. Otherwise, it typically takes 2 days to become effective. After childbirth, if started on day 21, it works immediately. -
If pills are started outside the specified windows, using a backup contraception method for the first 7 days (combination pill) or 2 days (progestin-only pill) is advised to ensure protection.
In all cases, consistent daily intake at the same time is crucial for effectiveness. Missing pills or starting late can reduce effectiveness and may require backup contraception.
