If you miss a contraceptive pill, take it as soon as you remember, then follow the missed pill rule for your specific pill type. A missed birth control pill affects your protection differently for the combined pill and the mini pill, and the correct response can change within hours.
In this blog, we will know what happens when you miss a pill, how the rules differ for a missed combined pill and a missed mini pill, your pregnancy risk after missing a pill, and exactly what to do next.
What Counts as a Missed Contraceptive Pill?
A missed contraceptive pill is one taken later than its specific missed pill window, which depends on which of the types of contraceptive pills you use: the combined pill or the progestogen-only pill, also called the mini pill.
The important thing is to check which type you’re taking before deciding what to do. The missed pill rules aren’t the same for every contraceptive pill.
Types of Contraceptive Pills and Their Missed Pill Windows
Each pill type carries a different missed pill window, and confusing the rules is a common reason people end up at real risk of pregnancy.
| Pill Type | Missed Pill Window | Example Brands |
| Combined pill | More than 24 hours late | Microgynon, Rigevidon |
| Traditional mini pill | More than 3 hours late | Noriday, Norgeston |
| Desogestrel mini pill | More than 12 hours late | Cerazette, Cerelle |
| Drospirenone mini pill | More than 24 hours late | Slynd |
Missed Combined Pill
A missed combined pill is one taken more than 24 hours after it was due. One missed pill rarely causes a problem, but two or more, especially near the pill-free break, raise your pregnancy risk noticeably, according to NHS guidance on the combined pill.
Missed Mini Pill
A missed mini pill depends on your type. Traditional mini pills allow only a 3-hour window, while desogestrel allows 12, as confirmed by NHS advice on taking the progestogen-only pill. Being late by a few hours on a traditional mini pill can reduce protection.
What Happens If You Miss a Pill? Pregnancy Risk Explained
Missing a pill can increase your chance of pregnancy, especially if you miss one near the start or end of a pack or have sex before your protection has been restored. With the combined pill, the risk is higher around the pill-free break, when ovulation may restart. With the mini pill, protection can be affected within just a few hours, as its effect on cervical mucus can wear off relatively quickly.
When Is the Pregnancy Risk After Missing a Pill Highest?
The pregnancy risk after missing a pill is highest when a missed dose overlaps with a fertile point in your cycle, such as the days around the combined pill’s break or shortly after starting a new mini pill pack.
What to Do If You Miss a Contraceptive Pill
What you need to do depends on your pill type, how late the pill is and whether you’ve had unprotected sex.
If you’re unsure which missed pill rules apply to you, check the information that came with your pill or speak to a pharmacist.
Steps for a Missed Combined Pill
- Take the last missed pill as soon as you remember, even if this means taking two pills on the same day.
- Continue the rest of the pack as normal.
- Use condoms for 7 days if you missed 2 or more pills.
- Ask a pharmacist about emergency contraception if you missed pills in week 1 or week 3 and had sex.
Steps for a Missed Mini Pill
- Take the missed pill as soon as you remember.
- Use condoms for 2 days, or 7 days for the drospirenone mini pill.
- Consider emergency contraception if you had sex while unprotected.
When Do You Need Emergency Contraception?
You may need emergency contraception if you’ve missed pills, had unprotected sex and your contraception wasn’t providing reliable protection at the time.
It can be difficult to work this out on your own because the answer depends on your pill type, how many pills you’ve missed and when you had sex. A pharmacist can assess your situation and provide emergency contraception quickly and discreetly, often on the spot.
If you’re concerned, it’s better to ask sooner rather than waiting to see what happens.
Not Sure What to Do After Missing a Pill?
Missing a pill can be worrying, especially when you’re unsure whether you’re still protected. You don’t have to figure it out on your own. At Pharmacy To My Door, our pharmacists can offer discreet advice on contraception, repeat prescriptions and emergency contraception.
If you’ve missed a pill or simply aren’t sure what to do next, speak to our team. We’re here to help you understand your options and put your mind at ease.
Frequently Asked Questions
What happens if you miss one contraceptive pill?
Missing one pill rarely causes a problem if you are within the missed pill window for your pill type. Take it as soon as you remember and continue the rest of your pack as usual.
Can you get pregnant after missing one pill?
Yes, though the risk is low for a single missed combined pill taken within 24 hours. The risk rises with a missed mini pill, since its window is much shorter, or if you miss more than one pill.
What is the difference between a missed combined pill and a missed mini pill?
The missed combined pill rule allows up to 24 hours’ leeway, while the missed mini pill allows only 3 hours for traditional types or 12 hours for desogestrel, making the mini pill far less forgiving of lateness.
Do you need emergency contraception after missing a pill?
You may need emergency contraception if you had unprotected sex while your missed pill left you unprotected. A pharmacist can confirm whether this applies to your situation.
How late can you take the mini pill?
It depends on the type. Traditional mini pills allow 3 hours’ leeway, desogestrel mini pills allow 12 hours, and drospirenone mini pills allow 24 hours.
What should you do if you miss more than one pill?
Take the most recent missed pill as soon as you remember, leave any earlier missed pills, continue the pack as normal, and use condoms for the recommended number of days for your pill type.
This blog is for general information only and is not a substitute for professional medical advice. Missed pill guidance varies by individual circumstances, so please speak to a pharmacist, GP or call NHS 111 before making decisions about your contraception.
