Delayed Menstruation and Pregnancy Testing Options

Menstrual delay and pregnancy test?

Hello Doctor: I would like to ask, if my period is 7 days late and I have already taken a pregnancy test at the obstetrics and gynecology department (which showed no pregnancy), can I rule out the possibility of being pregnant? If I use a menstrual induction injection and my period still does not come, do I need to take another pregnancy test or should I switch to taking menstrual induction medication? Thank you.

Wang, 20~29 year old female. Ask Date: 2018/09/25

Dr. Huang Jianzhong reply Obstetrics and Gynecology

Menstruation is delayed by 7 days, and a pregnancy test has been conducted at the obstetrics and gynecology department (negative result).
Can pregnancy be ruled out? Answer: Test again in 14 days.
If a menstrual induction injection was administered and menstruation still does not occur, is it necessary to retest for pregnancy or switch to menstrual induction medication? Answer: No, it is not necessary.

Reply Date: 2018/09/25

More Info

When it comes to understanding delayed menstruation and pregnancy testing options, it's essential to consider several factors that can influence menstrual cycles and the accuracy of pregnancy tests.
Firstly, a delay in menstruation can be caused by various factors, including hormonal imbalances, stress, changes in weight, excessive exercise, or underlying medical conditions such as polycystic ovary syndrome (PCOS). In your case, since you mentioned that your period is delayed by seven days and you have already taken a pregnancy test at a gynecologist's office that returned negative, it is reasonable to consider that pregnancy is less likely. However, no test is 100% accurate, especially if taken too early.
Typically, home pregnancy tests are most reliable when taken after a missed period. If you have taken a test and received a negative result, it is advisable to wait a few days and test again if your period does not start. This is because the hormone hCG, which is produced during pregnancy, may not be detectable in the urine until a few days after a missed period.
Regarding the use of medications to induce menstruation, such as progestin (often referred to as "催經藥"), it is essential to consult with your healthcare provider. If you decide to use a medication to induce your period, it is generally not necessary to retest for pregnancy if you have already had a negative test and are confident in the timing of your cycle and sexual activity. However, if there is any doubt, it may be prudent to confirm that you are not pregnant before starting any medication.

If you choose to use a medication to induce your period, it is crucial to follow your doctor's instructions carefully. Medications like progestin can help regulate your menstrual cycle, but they should be used under medical supervision, especially if there is any uncertainty regarding pregnancy.
In summary, since you have already tested negative for pregnancy, and if you are considering using medication to induce your period, you may not need to retest unless you have concerns about the accuracy of the previous test or if your symptoms change. It is always best to discuss your options with your healthcare provider to ensure that you are making the best decision for your health.
Additionally, if your menstrual irregularities continue or if you experience other concerning symptoms, it would be wise to seek further evaluation to rule out any underlying health issues. Regular follow-ups with your gynecologist can help monitor your menstrual health and provide guidance tailored to your specific situation.

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