how many days until the morning after pill won't work?
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You can take Plan B, My Way, and other levonorgestrel morning-after pills up to 5 days after unprotected sex. But the longer you wait to take it, the less effective it is. These types of morning-after pills may not work if you weigh 155 pounds or more.
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In fact, the sooner you start it, the more effective it is. As long as you're taking it after unprotected sex, it's never too early to take emergency contraception. Emergency contraception can be started up to 120 hours (five days) after unprotected sex. For most brands, the sooner you take it, the better it works.
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He says: "Acting quickly is key to ensuring the emergency contraceptive you use works as well as it can. "Levonelle can be taken within 72 hours (three days) of unprotected sex; for EllaOne the window is a little longer at 120 hours (five days). "But generally, the sooner you take it, the more likely it is to work.
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The short answer is: no. All morning after pills work by delaying ovulation, so if you have ovulated in the last 24 hours then it won't be effective.
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You can buy these morning-after pills over the counter without a prescription in most drugstores and pharmacies. These types of morning-after pills work best when you take them within 72 hours (3 days) after unprotected sex, but you can take them up to 5 days after.
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If taken within five days (120 hours) of having unprotected sex, it is almost 98% effective at preventing pregnancy. The emergency contraceptive pill Ulipristal Acetate (UPA) ellaOne does not protect you from further unprotected sex.
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You don't take it soon enough. Morning-after pills like Plan B and Next Choice are effective if you take them within five days of unprotected sex. The major caveat here is that they work best when taken within 72 hours, then the efficacy starts dropping.
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By using emergency contraception within 3 days of sex (the sooner, the better), you can dramatically lower your chance of getting pregnant. It may also work up to 5 days after sex, though it won't be as effective.
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Taking the morning-after pill — emergency contraception — more than five days after unprotected vaginal intercourse won't have any effect. Emergency contraception — the morning-after pill — is effective if started within 120 hours, or five days. The sooner emergency contraception is started, the better it works.
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To use the morning-after pill: Follow the morning-after pill's instructions. If you use Plan B One-Step, take one Plan B One-Step pill as soon as possible and less than 72 hours after unprotected sex. If you use ella, take one ella pill as soon as possible and less than 120 hours after unprotected sex.
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The Plan B pill works best when you take it within 3 days after unprotected sex.
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A levonorgestrel morning-after pill like Plan B One Step, Take Action, My Way, and AfterPill can lower your chance of getting pregnant by 75-89% if you take it within 3 days after unprotected sex.
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How does the plan B® morning-after pill work? plan B® comes in a one-pill dose. If taken within 72 hours (3 days) and preferably within 12 hours after a contraceptive accident or unprotected sex, it can prevent pregnancy by doing one of three things: Temporarily stops the release of an egg from the ovary.
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It's also an important option for women who were forced to have sex. By using emergency contraception within 3 days of sex (the sooner, the better), you can dramatically lower your chance of getting pregnant. It may also work up to 5 days after sex, though it won't be as effective.
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HOW LONG IS PLAN B® EFFECTIVE? The sooner you take plan B®, the more effective it is. It can prevent pregnancy if taken within 72 hours and preferably within 12 hours of unprotected sex. If you take it within 24 hours of unprotected sex, it is 95% effective.
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The emergency contraceptive Pill (ECP) is also known as the morning-after pill, but it's not just for the morning after. ECPs are most effective when taken soon after unprotected sex, but can still have some effect for up to 4-5 days (96-120 hours) depending on where you are in your cycle and which pill(s) you take.
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Plan B, My Way, Take Action, and other levonorgestrel morning-after pills work best when you take them quickly after unprotected sex. They'll work best up to 3 days (72 hours) after unprotected sex. You can take these up to 5 days (120 hours) after sex, but they don't work nearly as well by day 5.