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Pregnancy & contraception

Can you get pregnant while taking the placebo pills in your birth control pack?

Placebo pills do not contain hormones, but they are part of some contraceptive schedules. You may still be protected if you used the active pills correctly and start the next pack on time.

5 min read

Short answer

For many combined birth control pill packs, you remain protected during the placebo-pill or pill-free days if you took the preceding active pills correctly and start the next pack on time. Placebo pills are usually there to help keep a daily routine. They do not contain the hormones that prevent ovulation.

That answer is not the same for every pill. If you missed active pills, started a new pack late, use a progestogen-only pill, or are not sure what your pack contains, check the leaflet or ask a pharmacist or clinician.

Why the next pack matters

The protection during a placebo interval depends on not extending the hormone-free time beyond what the instructions allow. Starting the next pack late can increase pregnancy risk because the body may have more time to ovulate.

The CDC notes that the period just before or after a hormone-free interval can be especially important when active pills are missed. It recommends method-specific action after two or more missed active pills. This is why it is useful to know whether you missed a placebo pill or an active one.

What if you had sex during placebo pills?

Sex during placebo days does not automatically mean pregnancy risk. If you used the active pills as directed and will start the next pack on schedule, you may still be protected. If anything was missed or delayed, ask for individual advice as soon as possible. Emergency contraception may be relevant in some time-sensitive situations.

Do not use withdrawal bleeding as a proof that your contraception worked. It is a response to the hormone-free interval, not a pregnancy test.

The bottom line

Placebo pills are not necessarily unprotected days. The key is the active pills before them and starting the next pack when the instructions say. If either part went wrong, a pharmacist or sexual-health service can help you make a safe plan.

Sources and further reading