My Choice Pill: How It Works?

TL;DR

• My Choice contains 1.5 mg of levonorgestrel and works by delaying ovulation to prevent pregnancy after unprotected sex.
• It is most effective when taken within 24 hours but can be used up to 72 hours (3 days) after unprotected intercourse.
• Side effects are usually mild and temporary, including nausea, headache, and changes to your next period.

How Does My Choice Pill Work?

My Choice works primarily by stopping or delaying ovulation. Ovulation is when your ovary releases an egg. If there is no egg available when sperm arrives, fertilization cannot happen. That is main mechanism behind this pill.

The active ingredient, levonorgestrel, is a synthetic form of hormone progesterone. It has been used in birth control pills for decades. In emergency contraception, it is delivered in a single higher dose (1.5 mg) to create a hormonal signal strong enough to temporarily pause ovulation process.

It is important to understand what this pill does not do. It will not end an existing pregnancy. If a fertilized egg has already implanted in your uterus, My Choice pill will not affect it. It is not an abortion pill. It is a preventive measure that works before pregnancy begins.

Levonorgestrel drug information from MedlinePlus (U.S. National Library of Medicine)

When Should You Take It?

Timing matters a lot with emergency contraception. The sooner you take My Choice pill after unprotected sex, better it works.

If taken within first 24 hours, effectiveness is highest. The pill can still work up to 72 hours (3 days) after unprotected sex, but effectiveness drops with each passing day. Some research suggests there may be limited efficacy up to 96 hours, but 72-hour window is standard recommendation.

Here is a simple way to think about it: every hour counts. Do not wait to see if you "feel pregnant" or try to figure out where you are in your cycle. Take it as soon as possible.

You take one tablet by mouth. That is it. No second dose needed. You can take it with or without food, though taking it with a light snack may help if you are prone to nausea. If you vomit within two hours of taking pill, contact a healthcare provider to ask whether you should take another dose.

How Effective Is It?

When taken as directed, My Choice pill can prevent about 7 out of 8 pregnancies that would have otherwise occurred. That translates to roughly an 85% to 87% reduction in chance of pregnancy.

That is a meaningful number, but it also means pill is not 100% effective. No emergency contraceptive is. Effectiveness depends on how quickly you take it and where you are in your menstrual cycle. If you have already ovulated, levonorgestrel-based emergency contraception is less effective because there is no ovulation left to delay.

This is also why emergency contraception should not replace regular birth control. Methods like pill, IUD, or implant are far more effective when used consistently. The My Choice pill is a backup plan, not a primary strategy.

What Are Side Effects?

Most people tolerate My Choice pill well. Side effects tend to be mild and resolve on their own within a day or two.

The most commonly reported side effects include:

• Nausea (this is most frequent one)
• Headache
• Fatigue and dizziness
• Lower abdominal pain or cramping
• Breast tenderness
• Changes to your next period (it may come earlier, later, or be heavier or lighter than usual)

Some people experience spotting or light bleeding in days after taking pill. This is not a period. It is a normal hormonal response and usually stops on its own.

Less commonly, some people feel bloated or notice temporary mood changes. These effects are driven by hormone surge and typically fade quickly. If you experience severe abdominal pain after taking pill, that could be a sign of an ectopic pregnancy, and you should seek medical attention right away.

If you are concerned about how emergency contraception might shift your cycle, this guide on delayed menstrual periods, causes, and management walks through what can affect your timing and when to follow up.

Will It Affect Your Future Fertility?

No. The My Choice pill does not affect your ability to get pregnant in future. Levonorgestrel clears your system quickly, and its effects are temporary. It does not cause any lasting changes to your reproductive health.

You can become fertile again very soon after taking it. That is why it is important to resume or start using a regular birth control method right away. If you were on pill and missed doses, start taking it again next day. If you were not using any method, talk to your doctor about which option might work best for you going forward.

Can Anyone Take It?

The My Choice pill is available over counter with no prescription, no ID, and no age restriction in United States. Anyone can walk into a store or purchase it online.

However, there are a few situations where you should check with a healthcare provider before taking it:

• If you are taking medications for epilepsy, tuberculosis, or HIV. Drugs like rifampin, phenytoin, carbamazepine, and efavirenz can reduce how well levonorgestrel works.
• If you are allergic to levonorgestrel or any inactive ingredients in tablet.
• If you are already pregnant. The pill will not work and is not intended for use during pregnancy.

Breastfeeding mothers can safely use levonorgestrel-based emergency contraception. Small amounts of hormone do pass into breast milk, but research indicates this does not harm nursing infant.

How Does It Compare to Plan B?

My Choice and Plan B One-Step contain exact same active ingredient at exact same dose: levonorgestrel 1.5 mg. They work same way, have same effectiveness, and carry same side effect profile.

The difference is cost. Plan B One-Step typically retails for around $40 to $50. My Choice is often available for $10 to $15 at retailers like Walmart, HEB, and Amazon. The lower price point exists because manufacturer spends less on national advertising.

So if you are choosing between two based on effectiveness, there is no difference. The more affordable option gives you same protection.

What Should You Do After Taking It?

After taking My Choice pill, keep an eye on your body over next few weeks. Your period should arrive around its expected time, give or take about a week. If your period is more than a week late, take a pregnancy test. A delay does not automatically mean you are pregnant, but it is worth confirming.

If you get a positive test result, follow up with your healthcare provider. The pill did not cause pregnancy, and it will not have harmed embryo. It simply means that fertilization and implantation had already occurred or pill did not prevent ovulation in time.

Going forward, think about a reliable method of regular contraception that fits your lifestyle. If you want to understand more about how unprotected sex near different points in your cycle affects pregnancy risk, this article on pregnancy risk after unprotected sex near menstruation is a helpful read.

Levonorgestrel emergency contraception overview from NCBI StatPearls (National Library of Medicine)

Conclusion

The My Choice pill is a safe, effective, and affordable emergency contraceptive that uses same proven ingredient as Plan B. It works by delaying ovulation and is most effective when taken as soon as possible after unprotected sex. Side effects are usually mild and short-lived, and it will not affect your long-term fertility. It is not a replacement for regular birth control, but when you need a backup plan, it is a solid option to have on hand. The most important thing is to act quickly, take pill as directed, and follow up with your regular healthcare provider if you have any concerns afterward.