Can You Take Plan B While on Birth Control?
Medically reviewed by Linda Girgis | MD, Girgis Family Medicine on August 21st, 2026.
Yes, you can safely take Plan B emergency contraception while on regular birth control. Taking Plan B with hormonal birth control like pills, patches, or rings does not cause dangerous interactions or reduce the effectiveness of either medication. Plan B contains levonorgestrel, a synthetic hormone that temporarily prevents ovulation, while your regular birth control maintains consistent hormone levels to prevent pregnancy. If you're on birth control and took it correctly, Plan B is typically unnecessary since your regular contraception is already 91-99% effective. However, Plan B can provide extra protection if you missed pills, experienced vomiting, or had other factors that might reduce your birth control's effectiveness.
Still have questions about this?
Ask your AI Doctor
Keep exploring
Related Questions
From the blog
More from Doctronic
Can Plan B Make Your Period Late? Understanding Emergency Contraception and Menstrual Changes
Emergency contraception like Plan B can create temporary changes in your menstrual cycle that might feel confusing or concerning. Plan B contains a…
Plan B Pill: Your Comprehensive Guide to Emergency Contraception
Emergency contraception represents an important reproductive health option for individuals seeking to prevent unintended pregnancy. The Plan B pill…
Plan B Messed Up My Cycle for Months: What to Expect
Yes, Plan B can mess up your cycle for months in some cases, though most disruptions resolve within one to two cycles. The high-dose levonorgestrel…