Understanding Your Options for Emergency Contraception
When you're facing an unexpected pregnancy scare, knowing your options for emergency contraception, often called the "morning after pill," is crucial. The question of "Which morning after pill is the best?" doesn't have a single, universal answer, as the best choice depends on individual circumstances, timing, and accessibility. However, understanding the types of morning after pills available and how they work can help you make an informed decision.
The Two Main Types of Morning After Pills
In the United States, there are two primary types of FDA-approved morning after pills:
- Levonorgestrel-based pills: These are the most common and widely available. They work by preventing or delaying ovulation, which is the release of an egg from the ovary. If ovulation has already occurred, they may also prevent fertilization.
- Ulipristal acetate-based pills: This type also works by delaying ovulation, but it may be more effective than levonorgestrel in some situations, particularly if taken closer to ovulation. It also has a longer window of effectiveness.
Levonorgestrel-Based Pills: The Workhorses of Emergency Contraception
Levonorgestrel is a synthetic progestin hormone. It's the active ingredient in several brands of morning after pills, including:
- Plan B One-Step®
- Next Choice One Dose®
- Levonorgestrel (generic)** - Many pharmacies offer their own generic versions of levonorgestrel, which are often more affordable.
How they work: Levonorgestrel pills are most effective when taken as soon as possible after unprotected sex, ideally within 72 hours (3 days). However, they can still offer some protection up to 120 hours (5 days) after intercourse, though their effectiveness decreases over time. They primarily work by stopping or delaying the release of an egg from your ovaries. This means if ovulation hasn't happened yet, the pill can prevent pregnancy. It's important to note that these pills do not terminate an existing pregnancy and do not cause abortions.
Effectiveness: The effectiveness of levonorgestrel pills varies depending on when they are taken. Studies show they can reduce the risk of pregnancy by a significant percentage when taken within the recommended timeframe. However, they are not 100% effective, and pregnancy can still occur.
Availability: Levonorgestrel-based pills are available over-the-counter at most pharmacies and drugstores without a prescription. You don't need to be a certain age to purchase them.
Ulipristal Acetate-Based Pills: A Stronger Option for Some
The primary ulipristal acetate-based pill available in the U.S. is:
- ella®
How they work: Ulipristal acetate is a selective progesterone receptor modulator. Like levonorgestrel, it primarily works by delaying or preventing ovulation. However, it is thought to be more effective than levonorgestrel in delaying ovulation for a longer period and may also affect the cervical mucus, making it harder for sperm to reach an egg. It is recommended to take ella® as soon as possible within 120 hours (5 days) of unprotected sex. It is also not an abortion pill and does not end an existing pregnancy.
Effectiveness: Ella® has been shown to be effective throughout the 120-hour window and may be more effective than levonorgestrel-based pills, especially when taken later within that window. Some studies suggest it might be slightly more effective overall.
Availability: Ella® is available by prescription only. This means you will need to see a healthcare provider or visit a clinic to obtain it. Some telehealth services also offer prescriptions for ella®.
So, Which Morning After Pill Is "Best"?
The "best" morning after pill is the one that is accessible to you and that you can take within the recommended timeframe.
- For immediate access and affordability: If you want a readily available option that you can purchase without a prescription, a levonorgestrel-based pill like Plan B One-Step® or a generic equivalent is likely your best choice. They are effective when taken promptly.
- For potentially higher effectiveness, especially if later in the window: If you can see a healthcare provider or access a prescription, and you are closer to the 72-hour mark or beyond (but still within 120 hours), ella® might be considered a slightly more effective option due to its mechanism of action.
Important Considerations:
- Timing is key: All morning after pills are most effective when taken as soon as possible after unprotected sex. The sooner you take it, the lower your chances of becoming pregnant.
- They are not abortifacients: It's crucial to understand that none of these medications cause abortions. They work by preventing pregnancy *before* it is established.
- They do not protect against STIs: Emergency contraceptive pills do not protect against sexually transmitted infections (STIs). If you are concerned about STIs, you should get tested and consider barrier methods like condoms for future protection.
- Effectiveness with certain medications: Some medications, like certain anticonvulsants and some herbal supplements (like St. John's Wort), can decrease the effectiveness of both levonorgestrel and ulipristal acetate. Always inform your healthcare provider or pharmacist about any other medications or supplements you are taking.
- BMI: Some research suggests that the effectiveness of levonorgestrel-based pills may be reduced in individuals with a higher Body Mass Index (BMI). While ella® may be less affected, it's still important to consider. If you have concerns about this, speak with a healthcare provider.
- Regular contraception is best: While morning after pills are a valuable emergency option, they are not intended for regular birth control. If you are sexually active, consider a reliable, long-term method of contraception.
Ultimately, the "best" morning after pill is the one you can access and take promptly. If you have any doubts or questions, don't hesitate to speak with a pharmacist or a healthcare provider. They can help you understand your options and make the right choice for your situation.
Frequently Asked Questions (FAQ)
How quickly do morning after pills need to be taken?
Morning after pills are most effective when taken as soon as possible after unprotected sex. Levonorgestrel-based pills (like Plan B One-Step®) should ideally be taken within 72 hours (3 days), but can still be effective up to 120 hours (5 days) with decreasing effectiveness. Ulipristal acetate-based pills (like ella®) are effective for up to 120 hours (5 days).
Why are there different types of morning after pills?
The different types of morning after pills contain different active ingredients (levonorgestrel or ulipristal acetate) that work in slightly different ways and can have varying windows of effectiveness. This offers individuals more options depending on their specific circumstances and when they seek emergency contraception.
Can I get pregnant if I take the morning after pill?
No morning after pill is 100% effective, so it is possible to become pregnant even after taking one. However, they significantly reduce the chances of pregnancy when taken as directed.
Do morning after pills cause an abortion?
No, morning after pills do not cause abortions. They work by preventing or delaying ovulation or fertilization before pregnancy can be established. They do not affect an existing pregnancy.
