Effectiveness of emergency contraceptive pills

Patient : My bf had sex with me 3-4 days after my last period, and i took postinor 2 ,2 hours after sex , will i be pregnant ??
Doctor :   An emergency contraceptive pill  works by preventing ovulation and/or thickening the cervical mucous and thus helps in p preventing pregnancy. Typically it should be taken immediately to upto 72 hours after unprotected intercourse. The earlier the better. Though no birth control measure is 100% effective, emergency contraceptive are around 90% effective in reducing the chances of pregnancy if taken within 24 hours of sex.

Related Q&A

Q: I am taking Cerazette and taking birth control as the first time. I accidentally start the first pill from the bottom...

Q: When taking POP birth control norethindrone how close to the time you are supposed to take it can it still be effecti...

Q: I've noticed my stomach has been gurgling since the last time i had sex they day after my period ended. I am on birth...

Q: I've been taking junel birth control. I just finish my first pack and now this week I'm on withdrawal bleeding. But i...

Q: Is it ok to take brith control after labral reconstruction surgery?

 
DOCTOR ADVISORY BOARD
218

Dr. James Obaji M.D.

  • 247 Reviews
  • Family Physician
173

Dr. Suneel Sharman M.D.

  • 190 Reviews
  • Family Physician
138

Dr. Pat Golden M.D.

  • 169 Reviews
  • Cardiologist
98

Dr. Kunaal Jindal M.D.

  • 112 Reviews
  • Plastic Surgeon
CNN
BBC
MSNBC
CBS
abcNews
FoxNews