Anytime you have unprotected sex, pregnancy is possible. The risk is increased if you have sex near the time of ovulation.
If you do not wish to be pregnant and if it has been less than five days since the intercourse, you could use Plan B to reduce your risk.
Plan B One-step is a pill you can take after unprotected sex to reduce the risk of pregnancy. It works best if it is used within the first 24 hours after sex but can be used up to 120 hours (or five days) after unprotected sex with decreased effects after the first three days. The sooner you use Plan B, the more effective it is.
Plan B works by delaying ovulation (the monthly release of an egg), and possibly by interfering with fertilization (the union of sperm and egg) and implantation (when the fertilized egg implants itself into the uterine lining). If you are already pregnant, it will not terminate the pregnancy. According to the manufacturer, the treatment prevents seven of eight pregnancies that otherwise would have occurred.
If you are 17 or older, you can purchase Plan B at most drug stores without a prescription. You will need to ask the pharmacist for Plan B as it is located behind the counter. You may also need to show ID to prove your age. Plan B is around $50. If you are under 17, you will need a prescription from a doctor. You can also get Plan B from a Family Planning or Planned Parenthood clinic. We offer Plan B at all of our clinics at a reduced cost. Some individuals qualify for free services.
One of the most common side effects of Plan B use is menstrual irregularity. Therefore, your next period could be earlier than usual, later than usual, or spotty (meaning you may bleed for a few days, stop, and then bleed some more).
Plan B should not be used as a regular method of birth control as it is less effective than other methods. If you are going to continue to have sexual contact, you may want to think about using a regular form of birth control. If you live near one of our offices, please call us for an appointment to discuss your contraceptive options. If you live further away, contact the Family Planning or Planned Parenthood office closest to you.
Regardless of whether you use Plan B or not, take a pregnancy test if you are a week or more late for your next period. Use first morning urine for the best results. If it is negative, repeat the test every two weeks until you have a normal period or a positive result.
31. May 2012
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