Plan B, also known as the morning-after pill, is a crucial option for preventing unintended pregnancy after unprotected sex. According to Planned Parenthood, taking Plan B within three days can significantly reduce the risk of pregnancy by 89%. While it provides a sense of relief in situations where regular contraception fails, it’s essential to be aware of the potential side effects, including changes to your menstrual cycle. Let’s delve deeper into how Plan B can affect your period, when to expect a return to normalcy, and when it’s advisable to consult with your OB/GYN.
How Does Plan B Affect Your Period?
After taking Plan B, it’s common for your next period to exhibit some irregularities. This is because the emergency contraceptive works by delaying ovulation, as explained by Dr. Mary Shorey, an OB/GYN at Johns Hopkins Bayview Medical Center. Delaying ovulation can lead to alterations in your menstrual cycle, with some experiencing delays while others might have earlier periods than usual. Additionally, spotting or irregular bleeding following emergency contraception use is not uncommon, and it may vary based on when in your menstrual cycle you took Plan B.
Other Possible Side Effects of Plan B
In addition to menstrual cycle changes, Plan B can cause minor side effects such as headaches, upset stomach, nausea, dizziness, tender breasts, and fatigue. These side effects are typically short-lived and do not require treatment. However, if you experience nausea and vomiting within two hours of taking the pill, its effectiveness may be compromised.
Plan B Spotting vs. Implantation Bleeding
Light spotting is a common side effect of Plan B but can also be mistaken for implantation bleeding. Dr. Sonya Brar from the Icahn School of Medicine at Mount Sinai notes that while implantation bleeding is usually accompanied by symptoms like cramping and nausea, distinguishing between the two can be challenging. If unsure, taking a pregnancy test three weeks after taking Plan B can help rule out pregnancy.
Is It Normal for Plan B to Disrupt Your Cycle for Months?
Generally, it’s not typical for Plan B to cause prolonged disruptions to your menstrual cycle. Most individuals should expect their period to return to normal within a week or after the next cycle. If persistent irregularities occur, underlying health conditions or medications may be contributing factors, and consulting with your doctor is advisable to rule out any concerns.
When to See a Doctor
If your period does not resume within three weeks after using Plan B or if you experience lower abdominal pain or persistent irregular bleeding, it’s recommended to seek medical advice. This is particularly important to rule out conditions like ectopic pregnancy or other underlying issues. Additionally, discussing the potential need for future prescriptions or alternative birth control methods with your doctor is beneficial.
FAQ
Can Plan B Cause Two Periods in a Month?
Plan B may lead to irregular bleeding or spotting, which could give the appearance of two periods in a month. If these episodes persist, consulting with your OB/GYN is advisable to determine the cause.
How Many Times Can You Take Plan B in a Month?
While there is no harm in taking Plan B multiple times if needed, it should not replace regular birth control methods. The efficacy of Plan B may vary for certain groups, and it does not protect against sexually transmitted infections.
What Is the Maximum Delay in Periods If You’re Not Pregnant?
Following the use of Plan B, your period should return to normal within one week of its expected occurrence. If this does not happen within three to four weeks, taking a pregnancy test and consulting with an OB/GYN is recommended.
Can You Take Plan B If You’re Nursing?
It is safe to take Plan B while breastfeeding, although it may temporarily reduce milk supply. It’s essential to consider this impact when using the morning-after pill.
For more information on emergency contraception, you can visit Planned Parenthood and Mount Sinai’s resources.