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www.verywellhealth.com/how-plan-b-works-906842

According to product labels, Plan B works mainly by preventing/delaying ovulation or by avoiding fertilization (by altering the movement of sperm and/or egg). The debate arises from the next part of the label which, under "mechanism of action," reads: “In addition, it [Plan B] may inhibit implantation (by altering the endometrium).” 1 ...

www.getpharmacyadvice.com/how-long-does-plan-b-delay-ovulation-for

Teva, the manufacturer of Plan B and Plan B One-Step, claims that it prevents ovulation – there’s no delay in there anywhere. The FDA supports Teva’s claim! There are resources out there though that say the emergency contraceptive both prevents AND delays ovulation. In these resources, an exact number of hours or days were not reported.

aleteia.org/2015/02/23/everything-youve-been-told-about-plan-b-is-wrong

Plan B is supposed to "work" if taken within 72 hours of unprotected sex. But your paper says if Plan B is taken on the day of ovulation or later, it appears to have NO impact on pregnancy.

www.nationalreview.com/2014/10/yes-plan-b-can-kill-embryos-donna-harrison

Many studies show that if LNG (Plan B) is taken four to two days before a woman is due to release an egg, then Plan B can delay ovulation for several days or prevent ovulation altogether (see here ...

www.drugs.com/answers/plan-work-right-before-ovulation-3370520.html

plan b, emergency contraception, ovulation, ejaculation, condom, semen, girlfriend My girlfriend and me were using a condom and it broke. Though it was only halfway in during ejaculation (not sure if this matters).

vaginapagina.livejournal.com/17800697.html

Plan B delays or prevents ovulation thus preventing the sperm from unprotected sex having any egg to get in. Ok. So how does that affect ovulation for the rest of your cycle? Let's take a regular 28 day cycle and say Plan B was taken the first day of it. Or, rather day 7, which would be after the period has ended.

answers.yahoo.com/question/index?qid=20090114121026AAtGUAd

Plan B does not have anything to do with ovulation. It's not 100% positive that it stops pregnancy from happening though. I would know. I took the plan B about 6 years ago and 9 months later I had a beautiful baby girl.

www.morningafterpill.org/how-does-it-work.html

How Does Plan B® Work? Plan B® (levonorgestrel) may prevent pregnancy by temporarily stopping the release of an egg from a woman's ovary, or it may prevent fertilization. It may also prevent a fertilized egg from attaching to the uterus .

www.drugs.com/answers/plan-step-before-ovulation-plan-effective-long-2694086.html

plan b, emergency contraception, sex, ovulation, plan b one-step, condom My boyfriend and I had sex around 6pm on the 11th (I am expected to beign ovulation on the 14th) when the condom broke and we did not realize until after he pulled out.

www.webmd.com/sex/birth-control/plan-b

If you take Plan B One-Step within 24 hours, it is much more effective. But you should know that Plan B One-Step is not as effective as regular contraception . So don't take it as a form of birth ...