You can take Plan B and other levonorgestrel morning-after pills up to five days after unprotected sex. But sooner is better — 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. If that's the case, the copper IUD or ella are better options for you. Plan B emergency contraception helps prevent pregnancy by temporarily delaying ovulation. Here's what you need to know about taking it: It's a single tablet you take by mouth. Must be taken within 72 hours after unprotected sex. Plan B is an over-the-counter emergency contraceptive that should be taken within 72 hours of unprotected intercourse to prevent pregnancy. Emergency contraceptives come in many brands including Plan B One-Step, Aftera, Econtra EZ, Take Action, Preventeza, and more. Here's what to expect if you take a Plan B pill.
"Plan B only works for a single act of sex and only within five days of unprotected sex (though it is much more effective if you use it as soon as possible after unprotected sex, preferably within As MrsD says, Plan B is effective taken within 72 hours. There are other Emergency Contraceptives that are good up to about 5 days so you do have time. If you live in the US, you need to see a doctor, or family planning clinic, for these other contraceptives as they require a prescription.
How to use Plan B Plan B is taken orally as a single tablet. The sooner it's taken after unprotected sex, or failed contraception, the more effective it's likely to be. Plan B helps prevent pregnancy before it starts by temporarily delaying ovulation when taken within 72 hours (3 days) after unprotected sex. Wondering whether you're within the window to take Plan B? Enter the date and time you had unprotected sex below.
Take Plan B as soon as possible after having unprotected sex. While Plan B is commonly called "the morning after pill," there's no need to wait until the next day to take it. It's most effective right after you have sex and must be taken within 72 hours. Get and take Plan B as soon as possible after having sex. Plan B is just as effective the first time you take it as the fiftieth time, so long as you follow the instructions on the label and take it within 72 hours of having unprotected sex. Use Plan B One-Step exactly as directed on the label, or as prescribed by your doctor. Plan B One-Step must be taken as soon as possible after unprotected sex (no later than 72 hours afterward). Call your doctor right away if you vomit within 2 hours after taking this medicine. Visit your doctor within 3 weeks after taking Plan B One-Step.
Plan B is approved to take up to 120 hours after unprotected sex, but the longer you wait to take it, the less effective it is and the greater your chance of possibly getting pregnant. Certain factors can make Plan B less effective, like if you have unprotected sex multiple times in the same cycle or if you are overweight and have a BMI over 35.
Find Plan B One-Step within three days. For Plan B One-Step to be the most effective, you need to find and take it within 72 hours of having sex. In fact, the sooner you take it, the better, which is why it is sometimes referred to as "the morning-after pill." Taking it within 24 hours is best. Plan B, sometimes referred to as the "morning after pill," is emergency contraception you take within 72 hours after unprotected sex. The sooner you take it, the better it works. Helps prevent pregnancy. Before it starts. No ID, no Rx required to purchase.