Changes in Menstrual Cycle After Taking Diane Birth Control

My first period after taking the Diane contraceptive pill is unusual?

I underwent a laparotomy due to an ectopic pregnancy on March 26 of this year.
My menstrual period started on April 23, and I began taking the contraceptive pill Diane on April 26, which I purchased directly from the pharmacy without a doctor's prescription.
I stopped taking the pill on May 16, and my period returned on May 20, but this time the menstrual flow was lighter than usual.
Is this change in menstrual flow related to taking the contraceptive pill, or could it be due to something else? Thank you.

Qiuqiu, 10~19 year old female. Ask Date: 2008/05/24

Dr. Zhong Wenzhen reply Obstetrics and Gynecology

Hello, thank you for your inquiry.
I would like to address your question and provide the following advice: Generally speaking, it is indeed related to the use of medication, but it is completely normal.
A typical menstrual flow ranges from 30 to 80 milliliters (equivalent to about one bottle of yogurt, which is 100ml).
As long as it falls within this range, it is considered normal, so there is no need to worry.
Wishing you peace and happiness!

Reply Date: 2008/05/24

More Info

After undergoing surgery for an ectopic pregnancy, it is understandable to have concerns about changes in your menstrual cycle, especially after starting a new birth control method like Diane (also known as Diane-35 or a similar formulation). The changes you are experiencing in your menstrual cycle, particularly the reduced flow, can indeed be attributed to the use of hormonal contraceptives.

Diane is a combination oral contraceptive that contains estrogen and progestin. These hormones work together to prevent ovulation, thicken cervical mucus, and thin the lining of the uterus. One of the common effects of hormonal birth control is a change in menstrual bleeding patterns. Many women report lighter periods, shorter cycles, or even missed periods altogether while on the pill. This is due to the way these hormones influence the endometrial lining, making it less thick and therefore resulting in less menstrual flow when you do have a period.

In your case, since you started taking Diane on April 26 and experienced a lighter period on May 20, it is likely that the hormonal changes from the contraceptive are the reason for the reduced menstrual flow. It is not uncommon for women to experience such changes, especially in the initial months of starting a new contraceptive. Your body may take some time to adjust to the new hormones, and it is possible that your menstrual cycle will stabilize over the next few months.

However, it is also important to consider other factors that could influence your menstrual cycle. The recent surgery for an ectopic pregnancy can also affect your hormonal balance and menstrual regularity. Stress, changes in weight, and other health conditions can also play a role in menstrual changes. If you continue to experience significant changes in your cycle, such as very light periods, prolonged absence of menstruation, or any unusual symptoms, it would be wise to consult with a healthcare provider. They can assess your situation more thoroughly and determine if any further evaluation or adjustment of your contraceptive method is necessary.

In summary, the lighter menstrual flow you are experiencing after starting Diane is likely a normal response to the hormonal changes induced by the contraceptive. It is common for menstrual patterns to change when beginning a new birth control method, and many women find that their cycles become more regular and predictable after a few months. If you have any concerns or if your symptoms persist, seeking advice from a healthcare professional is always a good step to ensure your reproductive health is on track.

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