Skip to content
My WebMD Sign In, Sign Up

Birth Control Health Center

Font Size

Emergency Contraception FAQ

What if I throw up after taking the medication? Am I still protected?

Emergency contraception pills can sometimes cause vomiting. As long as you throw up more than two hours after you took it, you should be fine. The medicine should be in your system. If you throw up within two hours of taking it, call your doctor or pharmacist. You may need to take a drug to settle your stomach and then take a second dose of the emergency contraception.

What if I'm already pregnant and take emergency contraception?

If you think you're already pregnant, don't take emergency contraception. The hormones in Plan B One-Step or generic levonorgestrel won't work at that point. You should not take Ella if you think you might be pregnant. It may not be safe.

Will taking more than one type of emergency contraception improve my odds?

No. One kind could block the effect of the other. Stick to one type and follow the directions.

How long does an emergency contraception pill last? Can I have sex again and still be protected?

Be careful. The pills may just delay ovulation, not stop it. If you have sex a second time, your risks of getting pregnant are higher. Be safe and use other protection instead.

Can I use emergency contraception pills more than once in a month?

You should use Ella only once in your cycle. You can use Plan B One-Step and generic levonorgestrel more than once. But if you're relying on it often, you should use regular birth control instead.

Is there a way I can use regular birth control pills as emergency contraception?

At a higher dose, regular birth control pills -- with progesterone and estrogen -- can work as emergency contraception. But don’t do this without talking to your doctor.

After taking an emergency contraceptive pill, when should I start using regular birth control again?

If you use condoms, a diaphragm, or a similar type of birth control, start using it right away. If you take birth control pills or use the patch or a vaginal ring -- but missed some doses -- start using them the next day. Buy you'll need to use a backup, like condoms, for at least a week

Will emergency contraception affect my fertility in the future?

No. Taking emergency contraception does not affect your ability to have a baby later. If you got an IUD for emergency contraception, a doctor will need to remove it before you can get pregnant.

1|2

WebMD Medical Reference

Reviewed by Michael W. Smith, MD on July 31, 2013

Today on WebMD

Birth Control Options
Slideshow
mother and daughter talking
Evaluator
 
Period Questions
Slideshow
Condom Quiz
Quiz
 
Forgot To Take Your Birth Control Pills
Article
pelivic pain slideshow
Slideshow
 
Birth Control Pills Weight Gain
Article
Ortho Evra Birth Control Patch
Article
 
Comparing Birth Control Pill
Article
New Birth Control Pill
Video
 
HPV Vaccine Future
Article
Young couple holding hands
Quiz