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Plan B - Morning After Pill

Plan B Is Emergency Contraception That:

  • Prevents pregnancy after unprotected sex.
  • Prevents the egg from being released from the ovary (ovulation) and prevents fertilization.
  • Should be taken as soon as possible, up to 3 days (72 hours) after unprotected sex.
  • Is more likely to be effective, the sooner you start the medication after unprotected sex.
  • Will not protect you from any sexually transmitted infections.
  • Will not cause miscarriage or harm to an existing pregnancy.

After You Take These Pills

  • Your period may be earlier or later than usual.
  • Your menstrual flow may be heavier, lighter, or the same as usual.
  • Schedule a follow-up visit with your health care provider if you do not have your period in three weeks or if you have symptoms of pregnancy.
  • Use some other form of birth control until you get your period again.
  • Continue using birth control for as long as you want to avoid pregnancy.

Possible Side Effects

Most women have no side effects from using Plan B. Others may experience nausea, breast tenderness, headache, dizziness, or irregular bleeding for the first 24 hours. Call your provider at Highland Family Planning at (585) 279-4890 if you have vomiting, or if any of these symptoms are too severe.

After Hours Access to Emergency Contraception

Emergency contraception (Plan B, Next Choice, and Levonorgestrel Tablets) is available in the U.S. without a prescription for those 17 and older. Call your pharmacy to make sure that they carry it. If you are under 17 and a Highland Family Planning patient, call us to request a prescription for Plan B.

  • Call the pharmacy of your choice and make sure that they carry Plan B.
  • Call our answering service at (585) 723-6526 between 9 pm and 8 am. Explain that you are a Highland Family Planning patient and need a prescription for Plan B emergency contraception called to your pharmacy. Your call will be returned within 24 hours. Have the name and phone number of your pharmacy ready.
  • You can also visit for suggestions of other local providers that offer Plan B.

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