Cervical Cancer Vaccine Timing and Pregnancy Concerns - Obstetrics and Gynecology

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Cervical cancer vaccine vs. pregnancy


I lost my baby at 36 weeks earlier this year, and I am eager to get pregnant again.
However, I have received two doses of the vaccine (administered in May and June), and the next dose is scheduled for August.
Can the vaccine be completed earlier than four months, or is it mandatory to wait six months? Additionally, after completing the three doses of the cervical cancer vaccine, how long should I wait before trying to conceive? I am concerned about the potential impact on the fetus if I become pregnant.

QQ, 30~39 year old female. Ask Date: 2009/07/31

Dr. Zhang Yongxuan reply Obstetrics and Gynecology


Second dose: two months after the first dose; third dose: six months after the first dose.
The appropriate interval for cervical cancer vaccination during pregnancy is between three to six months.
Pregnant women are not recommended to receive the vaccine.
If a woman becomes pregnant after receiving the first dose, subsequent doses should be postponed until after delivery.
If pregnancy occurs during the vaccination period, there is no need to terminate the pregnancy.
Vaccination can be administered while breastfeeding.

Reply Date: 2009/07/31

More Info


The concerns surrounding the timing of the cervical cancer vaccine, particularly in relation to pregnancy, are quite valid and important to address. The cervical cancer vaccine, specifically Gardasil, is designed to protect against certain strains of the human papillomavirus (HPV) that are known to cause cervical cancer. The vaccine is typically administered in a three-dose series: the first dose, followed by a second dose two months later, and the third dose six months after the first.
In your case, since you have already received two doses of the vaccine in May and June, you are scheduled for your third dose in August. While it is generally recommended to adhere to the standard schedule of two months between the first and second doses and six months between the first and third doses, there is some flexibility. If you are considering getting pregnant soon, it is advisable to consult with your healthcare provider about the possibility of receiving the third dose earlier. However, it is crucial to follow the guidance of your healthcare provider to ensure the best outcomes for your health and future pregnancy.

Regarding the timing of pregnancy after completing the vaccine series, there is no specific waiting period mandated after receiving the cervical cancer vaccine. The vaccine is not live, meaning it does not pose a risk to a developing fetus. Therefore, if you feel ready to conceive after completing the vaccine series, it is generally considered safe to do so. However, it is always best to discuss your individual circumstances with your healthcare provider, especially considering your recent loss and desire to conceive.

It is also important to note that if you become pregnant after receiving the first dose of the vaccine but before completing the series, you do not need to terminate the pregnancy. The vaccine is safe during pregnancy, but it is recommended to postpone any further doses until after childbirth. If you find out you are pregnant after receiving the first dose, you can continue with the remaining doses after you have given birth.

In summary, while the cervical cancer vaccine is an important preventive measure against cervical cancer, it is essential to communicate openly with your healthcare provider about your vaccination schedule and any plans for pregnancy. They can provide personalized advice based on your medical history and current health status. Always prioritize your health and well-being, and do not hesitate to seek support during this time.

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