The morning-after pill helps prevent pregnancy after unprotected sex, but its efficacy differs depending on the user's body mass and the timing of when they take the medication.

The morning after pill may seem like a relatively new drug, but the main ingredient in it—levonorgestrel—is the same form of progestin found in other forms of birth control, like the IUD.

But anti-abortion advocates are wrong about what the morning-after pill does — as are abortion-rights proponents, the National Institutes of Health, the Mayo Clinic, and Plan B's label ...

1. The morning-after pill is made of progesterone. This is one of the hormones found in birth control pills. But, it's in a much higher dose in the morning-after pill.

Morning-after pills such as Plan B One-Step can lower a woman's chances of getting pregnant by 75-89% if taken within three days of having unprotected sex, according to Planned Parenthood.

Doctor Charis Chambers warned that levonorgestrel morning-after pills — commonly sold as Plan B — has been shown to have decreased efficacy based on both the weight and BMI (body mass index ...

Consider the morning after make it or break it time. Add your morning after dealmakers and dealbreakers in the comments. The Frisky: What's The Most Ridiculous Post-Sex Request You've Ever Received?

6 Things You Need to Know About the Morning-After Pill Emergency contraception use is on the rise. Read up on it now to be better prepared for a crisis by Casey Gueren Published: Feb 20, 2013 5:54 ...

The morning-after pill helps prevent pregnancy after unprotected sex, but its efficacy differs depending on the user's body mass and the timing of when they take the medication.