The rules for a missed birth control pill vary by pill type, and within the progestin-only category, by brand. This page is a complete reference organized by pill type: combination pill, traditional progestin-only pill (3-hour window brands), desogestrel (12-hour window brands such as Cerazette or Cerelle), and drospirenone. Use it to look up the rules for your specific pill. If you want guidance for your pack position instead, such as week 1 versus near the placebo week, see the scenario guide linked below.
Other guides in this series
First: Know Your Pill Type
There are two main types of birth control pill, and the rules differ significantly between them.
Combination pill (called the combined pill in the UK), contains both estrogen and progestin. You typically take it for 21 days followed by a 7-day placebo interval, or 28 days with 7 placebo pills built into the pack. Common brands include Yaz, Yasmin, Ortho Tri-Cyclen, and Junel; UK equivalents include Microgynon and Rigevidon.
Progestin-only pill (mini-pill), contains only progestin. Taken every day without a break. Much shorter protection window: 3 hours for most brands, or 12 hours for desogestrel-based brands (like Cerazette, Cerelle). Common US brands include Camila, Errin, and Norethindrone tablets; UK equivalents include Norgeston and Noriday.
Missing a Combination Pill
Less than 24 hours late
Continue your pack as normal
Take the missed pill as soon as you remember, even if it means taking two pills in one day. Continue the rest of your pack as normal. No backup contraception needed.
24 hours or more late, one missed pill
Take it now and use backup contraception
Take the missed pill immediately, even if it means taking two in one day. Continue your pack as normal. Use condoms for the next 7 days. If there are fewer than 7 hormone pills left in your pack after the missed one, skip the placebo pills and start the next pack straight away.
Two or more missed pills
Take the most recent one and use backup contraception
Take the most recently missed pill immediately, leave any earlier missed pills. Continue your pack. Use condoms for the next 7 days. If there are fewer than 7 hormone pills remaining, skip the placebo pills. If you had unprotected sex in the 7 days before missing pills, consider emergency contraception.
Missing a Progestin-Only Pill (Mini-Pill)
Within your window (3h most brands / 12h desogestrel)
Continue your pack as normal
Take the pill now and continue as normal. No backup contraception needed.
Outside your window
Take it now and use backup contraception
Take the missed pill as soon as you remember. Use condoms for the next 48 hours. If you have had unprotected sex during the at-risk period, consider emergency contraception.
Missing a Drospirenone-Only Pill
The drospirenone-only pill (US and UK brand: Slinda) has a 24-hour missed-pill window, the same as the combination pill, but without a placebo interval built in the same way. The Slinda pack contains 24 hormone pills followed by 4 placebo tablets. Note: some combination pills also contain drospirenone paired with an estrogen (such as Yaz or, in the UK, Eloine); those follow combination pill missed-dose rules, not the guidance below.
Less than 24 hours late
Continue your pack as normal
Take the pill as soon as you remember, even if it means taking two pills in one day. Continue the rest of your pack as normal. No backup contraception needed.
24 hours or more late
Take it now and use backup contraception
Take the missed pill immediately and continue your pack. Use condoms for the next 7 days. If you had unprotected sex during the at-risk period, check with your pharmacist, doctor, or sexual health clinic about whether emergency contraception is needed. Refer to your patient package insert or consult your pharmacist for full guidance specific to drospirenone.
Why the Placebo Week Matters
Missing pills near your placebo week is the highest-risk scenario
The placebo week or pill-free interval is a planned hormone gap of up to 7 days. If you also miss pills immediately before it starts or after a new pack begins, the total time without active hormones can exceed 7 days, long enough for ovulation to potentially occur in some women. Always be extra careful at the start and end of your pack, and skip the placebo pills if you've missed hormone pills near them. For the full walkthrough by pack position, see what to do based on where you are in the pack.
Estroclic's calendar view makes this easy to monitor: you can see at a glance where your placebo week falls, which pills you've taken, and whether there are any gaps near it.
Outside the US
In the UK, the combination pill is usually called the combined pill and the progestin-only pill is called the progestogen-only pill. UK brands include Microgynon, Rigevidon, Cerazette, Cerelle, and Slinda. Dosing windows there are set by the FSRH rather than the CDC or ACOG. If you're in the UK, check your patient information leaflet, or speak with the NHS, your GP, a pharmacist, or a sexual health clinic.
Your Protection Window in Estroclic
Available on Google Play and the App Store
Keep a clear record of your pill schedule
Estroclic records your pill schedule and dose times. If you need to speak to a pharmacist, doctor, or sexual health clinic about a missed pill, you have an accurate timeline of what happened and when, not a reconstruction from memory. Your Pack Summary in the Insights tab shows pills taken and any gaps for the current cycle, and you can export a PDF cycle report to share with a healthcare professional if needed.
When to Use Emergency Contraception
Consider emergency contraception (such as levonorgestrel, e.g. Plan B, or ulipristal acetate, e.g. Ella) if:
- You missed two or more combination pills and had unprotected sex in the 7 days before missing them
- You missed a mini-pill and had unprotected sex during the at-risk period
- You are uncertain about your protection status
Emergency contraception is most effective the sooner it is taken. It is not a regular method of contraception. Contact your doctor, pharmacist, or sexual health clinic as soon as possible.
Quick Reference
| Scenario | Action | Backup contraception? |
|---|---|---|
| Combination pill, less than 24h late | Take it now, continue pack | No |
| Combination pill, 24h+ late (1 pill) | Take it now, continue pack. Skip placebo pills if <7 hormone pills left. | Yes, 7 days |
| Combination pill, 2+ missed pills | Take most recent only, leave others. Skip placebo pills if <7 hormone pills left. | Yes, 7 days |
| Traditional mini-pill (e.g. Camila, Norgeston), within 3h window | Take it now, continue | No |
| Traditional mini-pill, outside 3h window | Take it now, continue | Yes, 48 hours |
| Desogestrel (e.g. Cerazette, Cerelle), within 12h window | Take it now, continue | No |
| Desogestrel, outside 12h window | Take it now, continue | Yes, 48 hours |
| Drospirenone-only (e.g. Slinda), less than 24h late | Take it now, continue pack | No |
| Drospirenone-only, 24h or more late | Take it now, continue pack | Yes, 7 days |
Sources
- Centers for Disease Control and Prevention (CDC). U.S. Selected Practice Recommendations for Contraceptive Use: Combined Hormonal Contraceptives. cdc.gov
- Centers for Disease Control and Prevention (CDC). U.S. Selected Practice Recommendations for Contraceptive Use: Progestin-Only Pills. cdc.gov
- American College of Obstetricians and Gynecologists (ACOG). Combined Hormonal Birth Control: Pill, Patch, and Ring. acog.org
- UK guidance: Faculty of Sexual & Reproductive Healthcare (FSRH). Combined Hormonal Contraception guideline, 2019 (updated 2023). fsrh.org
- UK guidance: Faculty of Sexual & Reproductive Healthcare (FSRH). Progestogen-only Pills guideline, 2022. fsrh.org