Is Heavy Bleeding After Emergency Contraceptive Normal? - Obstetrics and Gynecology

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"Post-stabilization"


After having sexual intercourse with my girlfriend on June 28, during her fertile period, I bought "Plan B" emergency contraception for her to take.
However, on July 5, my girlfriend got her period, and the bleeding was quite heavy (similar to her usual maximum menstrual flow).
Is this normal? Her last menstrual period started on June 16.

Nao, 30~39 year old female. Ask Date: 2005/07/05

Dr. Li Guanghan reply Obstetrics and Gynecology


Hello: It is common to experience withdrawal bleeding within a week after taking emergency contraception, but this does not guarantee that pregnancy prevention was successful.
Hsinchu City Hospital, Department of Obstetrics and Gynecology.

Reply Date: 2005/07/05

More Info


Heavy bleeding after taking emergency contraceptive pills (ECPs), such as "Plan B" or "Postinor," can occur and is not uncommon. These medications contain hormones that can disrupt the normal menstrual cycle, leading to changes in bleeding patterns.
When your girlfriend took the emergency contraceptive pill after unprotected intercourse, it likely altered her hormonal balance. This can result in a heavier than normal menstrual period, which may be what she is experiencing now. The timing of her bleeding, starting on July 5, is also significant because it is close to her expected menstrual cycle, which typically occurs every 28 days. Since her last period began on June 16, the timing aligns with her usual cycle, but the amount of bleeding may be more than what she typically experiences.

It's important to note that while heavy bleeding can be a side effect of ECPs, it can also indicate other issues, such as hormonal imbalances or even the possibility of pregnancy complications if she were to be pregnant. However, since she took the emergency contraceptive pill, the likelihood of pregnancy is significantly reduced.

In general, the side effects of emergency contraceptive pills can include:
1. Changes in Menstrual Cycle: This can include heavier bleeding, lighter bleeding, or even a delay in the next period.

2. Nausea and Vomiting: Some women may experience gastrointestinal side effects.

3. Breast Tenderness: Hormonal changes can lead to discomfort in the breasts.

4. Fatigue and Headaches: These are common side effects due to hormonal fluctuations.

If the heavy bleeding persists beyond her normal menstrual period or if she experiences severe pain, dizziness, or any other concerning symptoms, it is crucial for her to seek medical attention. A healthcare provider can perform an evaluation to rule out any complications or underlying conditions.

In summary, while heavy bleeding after taking an emergency contraceptive pill can be normal due to hormonal changes, it is essential to monitor the situation. If there are any unusual symptoms or if the bleeding does not subside, consulting a healthcare professional is advisable to ensure her health and well-being.

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