Birth Control and Plan B

Patient

Q: How long do i have to wait to start on birth control if i just recently took the Plan B pill?

Doctor

A:   Plan b helps protect against accidental pregnancy incidents. You may start taking the regular pills based on how far in your cycle you are at the time of your first pill. If you are going to start the pills anytime in the first two weeks of your cycle, you need to use additional protection for at least the first 7 active pills have been taken because of the uncertainty of the ovulation time while starting the pills for the first time, or after taking a break from the pills. But if you decide to start the pill anytime in the last weeks of your cycle, it should be fine to continue without additional protection.

Related Q&A

Q: My girlfriend threw up her 2nd to last active birth control pill about an hour after she took it. She took her one th...

Q: My girlfriend and I had a condom break over the weekend. She had been taking birth control for about 6 days. Is plan ...

Q: The pill I'm currently on is Micronor which is norethisterone based, and last week my period was due on and so my doc...

Q: I missed my birth control pill on Monday. I took it with my regular pill on Tuesday. I had sex Tuesday night and my b...

Q: Four weeks ago I was supposed to get my period but instead I decided to take my birth control pack a week early. I ha...

MOST DOCTOR RECOMMENDATIONS
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