How long after starting the progesterone-only pill is it considered effective?

The progesterone-only pill, often referred to as the mini-pill, takes approximately 48 hours to become fully effective when started. This timeframe allows for sufficient hormone levels to build up in the body to prevent ovulation effectively.

If a person begins taking the mini-pill at least 48 hours before engaging in unprotected intercourse, it provides effective contraception. If it is started later than this time frame, which is generally considered an important guideline, an additional contraceptive method should be utilized to prevent unintended pregnancy during that initial period.

Understanding this concept is vital for individuals using the progesterone-only pill to ensure they are adequately protected, especially when they initially start the regimen. This knowledge reinforces the importance of timing and adherence to the pill for optimal contraceptive effectiveness.