How to Know If Plan B Emergency Contraception Is Working

Learn how to tell if Plan B is effective by monitoring your menstrual cycle and understanding side effects. When to take a pregnancy test explained.

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To discern if Plan B is working, await your next menstrual period. It should occur at the usual time or within a week of the expected date. If your period is more than a week late, consider taking a pregnancy test. Although Plan B can cause temporary side effects like nausea or tiredness, the most reliable indicator of its effectiveness is the timing and normalcy of your next period. However, if you're experiencing unusual symptoms or have concerns, consulting a healthcare provider is recommended.

FAQs & Answers

  1. How long after taking Plan B should I expect my period? You should expect your next menstrual period to arrive at the usual time or within a week of the expected date after taking Plan B.
  2. What are common side effects of Plan B? Common side effects of Plan B include nausea, tiredness, and temporary changes in your menstrual cycle.
  3. When should I take a pregnancy test after Plan B? If your period is more than a week late after taking Plan B, it is recommended to take a pregnancy test to confirm if the emergency contraception was effective.