Adjusting Birth Control: How to Regulate Your Menstrual Cycle with Loette - Obstetrics and Gynecology

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Dalian to Loin?


Hello, Doctor.
I took Diane for 5-6 months, but later I developed hives due to an allergic reaction to its ingredients.
My gynecologist suggested switching to Loette, as Diane has a regimen of 21 days of pills followed by 7 days off (with menstruation starting on the fourth day after stopping the medication).
However, I have a problem now.
Loette is a 24+4 regimen.
My last menstrual period started on November 6, and after stopping Diane for seven days, I switched to Loette.
According to the previous 21-pill regimen, my period should have started on December 4, but it seems I have to wait until I finish all 24 pills of Loette before my period comes? It appears that my cycle has extended to 31 days now.
What should I do to adjust it back? How can I change my regimen to return my cycle to 28 days? Thank you (I hope to maintain a 28-day cycle).

Niming, 30~39 year old female. Ask Date: 2023/12/04

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, try taking the first birth control pill on the fourth day of your period.
Wishing you good health!

Reply Date: 2023/12/04

More Info


When it comes to adjusting birth control methods and regulating your menstrual cycle, it's important to understand how different contraceptive pills work and how they can affect your cycle. In your case, you transitioned from Diane (which is a combination pill with a 21/7 regimen) to Loette (which follows a 24/4 regimen). This change can indeed impact the timing and regularity of your menstrual cycle.

Firstly, it's essential to recognize that hormonal contraceptives like Diane and Loette work by altering the hormonal balance in your body to prevent ovulation and regulate your menstrual cycle. When you switch from one pill to another, your body may take some time to adjust to the new hormone levels, which can lead to changes in your cycle length and timing.

In your situation, since you experienced a change in your cycle after switching to Loette, it's not uncommon. The 24/4 regimen means you take active pills for 24 days followed by 4 days of placebo pills, during which you would typically have your withdrawal bleed (similar to a period). The fact that you are experiencing a longer cycle (31 days) could be due to your body adjusting to the new formulation, or it could be a result of the different dosing schedule.

To help regulate your cycle back to a more typical 28-day pattern, here are some suggestions:
1. Consistency is Key: Ensure that you take your Loette pill at the same time every day. Consistency helps maintain stable hormone levels, which can aid in regulating your cycle.

2. Monitor Your Cycle: Keep track of your menstrual cycle for a few months after switching to Loette. This will help you and your healthcare provider understand how your body is responding to the new pill.

3. Consult Your Healthcare Provider: If your cycle remains irregular or if you have concerns about the length of your cycle, it's crucial to consult with your healthcare provider. They can assess your situation and may suggest alternative contraceptive methods or adjustments to your current regimen.

4. Consider Other Factors: Stress, diet, exercise, and other lifestyle factors can also influence your menstrual cycle. Ensure you are maintaining a healthy lifestyle, as these factors can play a significant role in cycle regularity.

5. Discuss Alternative Options: If you find that Loette does not help in regulating your cycle as desired, your healthcare provider may recommend trying a different formulation or type of birth control that may be more suitable for your body.

6. Understand the Adjustment Period: It can take a few months for your body to adjust to a new hormonal contraceptive. If you have just switched to Loette, give it some time before making any drastic changes.

In summary, while it is possible to regulate your menstrual cycle with Loette, it may take some time for your body to adjust to the new pill. Consistency in taking the pill, monitoring your cycle, and consulting with your healthcare provider are essential steps in managing your menstrual health. If irregularities persist, your provider can help you explore other options to find the best fit for your needs.

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