Skip to content

What Happens When You Take Your Birth Control in the Wrong Order?

5 min read

According to the Centers for Disease Control and Prevention (CDC), the effectiveness of birth control pills can drop significantly with typical use—which includes taking them out of order—compared to perfect use. Understanding what happens when you take your birth control in the wrong order is crucial for maintaining contraceptive efficacy and preventing unintended pregnancy.

Quick Summary

Taking birth control pills out of order poses different risks depending on the pill type: monophasic pills are less affected, while multiphasic or skipping active doses for placebos can reduce effectiveness. Action needed varies based on the specific mistake made.

Key Points

  • Know Your Pill Type: The effect of taking pills in the wrong order depends on whether your pill is monophasic (same hormone dose) or multiphasic (varying hormone doses).

  • Monophasic Mistakes are Minor: For monophasic pills, taking active pills out of sequence is not a problem as long as you don't take a placebo instead.

  • Multiphasic Mistakes are Risky: Taking multiphasic pills out of order can disrupt the hormonal balance and reduce contraceptive effectiveness.

  • Placebos During Active Week are Missed Pills: Taking a placebo instead of an active pill is the same as missing a pill and puts you at risk of pregnancy.

  • Use Backup Contraception After Major Mistakes: If you miss multiple active pills or make a significant error, use a backup method like condoms for at least 7 days.

  • Consult a Professional for Complex Errors: If you are unsure what to do after a mistake with a multiphasic pill or after missing multiple pills, contact your doctor or pharmacist.

In This Article

The effectiveness of your birth control hinges on the correct and consistent administration of hormones, which is why taking your pills in the proper order is so important. The consequences of making a mistake, however, can range from a minor inconvenience to a significant risk of pregnancy, and the outcome depends largely on the specific type of pill you are using.

Monophasic vs. Multiphasic Pills: The Crucial Difference

Not all birth control pills are created equal, and this is the most critical distinction to make if you realize you've taken your pills out of order. Your pill pack is either monophasic, where every single active pill contains the exact same amount of hormones, or multiphasic, where the hormone dose changes at different points in your cycle.

How Taking Pills Out of Order Affects Monophasic Pills

In monophasic packs, all the hormonal (active) pills are identical in composition. For these pills, taking them out of sequence is generally not a major issue as long as you are still taking one active pill every day and not substituting an active pill with a placebo. The primary purpose of the daily schedule is to help you keep track and build a consistent habit.

If you accidentally take a placebo pill during an active week, however, that is a different matter. A placebo pill contains no hormones, so taking it instead of an active one is the same as missing a pill entirely. This mistake introduces a gap in your hormonal coverage and could compromise your protection against pregnancy. To fix this, you should take the active pill you missed as soon as you remember.

How Taking Pills Out of Order Affects Multiphasic Pills

Multiphasic pills (including bi-, tri-, and quadriphasic packs) are designed to mimic the natural hormone fluctuations of your menstrual cycle by varying the levels of estrogen and progestin throughout the pack. Taking these pills out of order can disrupt the intended hormonal pattern, potentially reducing their effectiveness at preventing ovulation.

For example, accidentally taking a high-progestin pill early in the cycle when you should have taken a lower-dose pill can confuse your body's hormonal signaling. Similarly, taking a placebo pill during an active week with a multiphasic pack carries the same risks as with a monophasic one, but the specific hormonal imbalance could be more pronounced. If you make this mistake, it's essential to consult your healthcare provider or the manufacturer's instructions immediately to understand the specific risks and how to proceed.

Action Plan: What to Do If You Make a Mistake

Your immediate action depends on several factors: the type of pill, the specific mistake you made, and where you are in your cycle. The following general steps are often recommended:

  • Stay Calm: The first step is to assess the situation without panic. Not all order mistakes are critical, but knowing your pill type is the key to understanding the risk.
  • Identify Your Pill Type: Check your packaging or medication information. Are you on a monophasic, multiphasic, or progestin-only pill? The label often specifies, or you can check the color-coding of the pills.
  • Assess the Mistake: Did you take two active pills in one day? Did you take a placebo instead of an active pill? Did you mix up the order of active pills?
  • Follow the Right Protocol: Based on the type of pill and the error, follow the appropriate steps laid out in the comparison table below. For any significant mistake, especially involving active pills early in the cycle, using a backup birth control method, like condoms, is highly recommended for the next seven days.

Comparison Table: Handling Birth Control Order Mistakes

Mistake Type Monophasic Pills Multiphasic Pills Progestin-Only Pills (Minipill)
Took two active pills in one day Take your next pill at the usual time. You will finish your pack one day early, which is fine. Take your next pill at the usual time. You will finish early, but verify hormone doses. Contact your doctor if unsure. Not applicable. Progestin-only pills are all the same dose; this mistake is typically treated as taking a pill early.
Took an active pill out of sequence No risk to contraceptive efficacy, but it can disrupt your tracking. Continue taking one active pill per day. High risk to contraceptive efficacy. Take the correct active pill for the day. Use a backup method for 7 days. Not applicable. All active pills are the same dose.
Took a placebo instead of an active pill Significant risk. Take the missed active pill immediately and use a backup method for 7 days. Significant risk. Take the correct missed active pill immediately and use a backup method for 7 days. Not applicable. All pills are active; there are no placebos in most minipill packs.
Took a placebo when it was time for another No risk to contraceptive efficacy as long as you've taken 7 consecutive active pills. Discard the extra placebo. No risk to contraceptive efficacy as long as you've taken 7 consecutive active pills. Discard the extra placebo. Not applicable.

The Role of Placebo Pills

Placebo, or inactive, pills are a crucial part of many birth control packs. They contain no hormones and serve two main purposes: maintaining the daily pill-taking habit and allowing for a withdrawal bleed. Critically, taking a placebo pill during the active week of your cycle is the same as missing a pill and compromises your protection against pregnancy. This is one of the most common ways that the "wrong order" can lead to a gap in coverage.

When to Contact Your Doctor

While many simple mistakes can be resolved on your own by consulting the instructions, certain situations warrant a call to your healthcare provider. You should reach out if:

  • You are on a multiphasic pill and have taken the pills out of order.
  • You have missed two or more active pills in a row.
  • You took a placebo instead of an active pill and had unprotected sex.
  • You are experiencing concerning symptoms or have ongoing confusion about your pill pack.
  • You miss pills frequently and are looking for alternative methods of birth control, such as an IUD or implant, that do not require daily adherence.

Conclusion: Prevention is Key

Taking your birth control in the wrong order can introduce confusion and, in some cases, increase your risk of pregnancy. The severity of the risk depends on whether your pill is monophasic or multiphasic and whether the mistake involves substituting an active pill with a placebo. The best way to prevent this issue is to establish a strong daily routine for taking your pills at the same time every day and to consult your doctor or pharmacist if you have any questions. Using a calendar, phone alarm, or a pill-tracking app can also help maintain consistency. If an error occurs, correctly identifying your pill type and taking the appropriate steps is the best way to restore your contraceptive protection. For more detailed guidance, the Planned Parenthood website offers helpful resources.

Resources

For more detailed information on specific brands or complex scenarios, consult your healthcare provider or reference the patient information leaflet that comes with your medication. Reliable sources like the CDC and Planned Parenthood also provide up-to-date guidance on what to do if you miss or take a birth control pill incorrectly.

Frequently Asked Questions

Your risk of pregnancy depends on the type of pill you take. If you use a monophasic pill and mixed up the active pills, your risk is very low. However, if you use a multiphasic pill or accidentally take a placebo during the active week, your risk increases.

Monophasic pills have the same dose of hormones in every active pill, so the order doesn't matter as much. Multiphasic pills have varying hormone levels throughout the cycle and must be taken in the correct sequence to be effective.

If you take a placebo instead of an active pill, you have essentially missed a pill. Take the correct active pill as soon as you remember. Use a backup method of contraception, like condoms, for the next seven consecutive days of active pills.

It is generally not harmful to take two pills in one day. This is often the correct procedure if you remember a missed pill from the previous day. You will simply finish your pack one day early.

Consider using emergency contraception if you miss pills during the first week of your pack and have had unprotected sex within the previous five days. Consulting your doctor is recommended.

No, it does not. All pills in a progestin-only pack are active and contain the same dose of hormone. However, it is crucial to take them within the same 3-hour window every day.

Yes, you can safely skip the placebo pills and start a new pack immediately to avoid a period. This is a common practice with some types of combination pills, though it may cause some breakthrough bleeding.

References

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

Medical Disclaimer

This content is for informational purposes only and should not replace professional medical advice.