Microgestin 1/20 FE: Usage and Menstrual Cycle Impact

Microgestin 1/20 FE Tablets 28's

Hello Doctor, I previously inquired here about taking emergency contraception in September.
Later, I had a light period for five days in October, but it was very minimal (I only needed to change a panty liner once a day).
The bleeding was brown from days 1 to 5 and red from days 6 to 10.
I did not have a period in November, so a few days ago, I went to an obstetrician-gynecologist abroad.
I had already used a home pregnancy test twice, both about 20 days after sexual intercourse (I tested twice in October, November, and December - all negative for pregnancy).
Currently, we mostly help each other out and have minimal physical contact.
Afterward, I wash my hands and take a shower.
Therefore, the doctor did not require me to take a pregnancy test and was informed of the details.
I underwent a urine test and a physical examination, after which the doctor prescribed me Microgestin 1/20 FE TABS 28's.
I checked, and there are many brands of oral contraceptives in Taiwan, but none of them match this one.
The doctor said this can help regulate my cycle and provide contraception.
I would like to ask, I have read many articles stating that the first pill should be taken within the first 1 to 5 days of the menstrual period, but since my period has not come, the doctor said it was okay to start taking the pills immediately after my visit.
Is this acceptable? Additionally, if I have already started taking the oral contraceptive, do I still need to calculate the safe period?

Qingqing, 20~29 year old female. Ask Date: 2015/12/12

Dr. Lin Wenbin reply Obstetrics and Gynecology

It is acceptable to take it this way.
You should still follow the instructions of the physician abroad and feel free to consult them if you have any questions.
Generally, when taking oral contraceptives regularly, they are effective in preventing pregnancy, as they inhibit ovulation, which eliminates the concept of a "safe period."

Reply Date: 2015/12/12

More Info

Microgestin 1/20 FE is a combination oral contraceptive pill that contains ethinyl estradiol and norethindrone. It is primarily used for contraception but can also help regulate menstrual cycles. Given your situation, it’s understandable to have questions about how to use this medication effectively, especially after experiencing irregular menstrual cycles following the use of emergency contraception.

Firstly, it’s important to note that starting Microgestin 1/20 FE can be done at different times depending on your menstrual cycle. Typically, healthcare providers recommend starting the pill during the first five days of your menstrual period to ensure immediate contraceptive protection. However, since you mentioned that your menstrual cycle has been irregular and you have not had a period recently, your doctor’s advice to start taking the pill immediately is appropriate. This is often referred to as "quick-starting" the pill, which is a common practice when a woman is not currently menstruating.

By starting the pill now, you will begin to regulate your menstrual cycle and provide contraceptive protection. It may take a few cycles for your body to adjust to the hormones in the pill, and during this time, you might experience some irregular bleeding or spotting. This is quite normal and should stabilize as your body adapts to the medication.

Regarding your question about needing to calculate safe periods after starting Microgestin, the answer is no. Once you have been taking the pill consistently for seven days, you will have effective contraceptive protection, and you do not need to rely on calendar methods or calculate safe periods. The pill works by preventing ovulation, thickening cervical mucus, and thinning the uterine lining, which collectively reduces the chances of pregnancy.

It’s also worth mentioning that if you miss a pill or take it late, it can affect its effectiveness, so it’s essential to take it at the same time every day. If you miss a dose, follow the instructions provided with your medication regarding what to do next, as this can vary depending on how many pills you have missed.

In summary, starting Microgestin 1/20 FE without having a recent period is acceptable, especially under your doctor’s guidance. It will help regulate your menstrual cycle and provide contraceptive protection. You do not need to calculate safe periods once you have been on the pill for a week. Always consult with your healthcare provider if you have any concerns or experience unusual side effects while taking the medication. Regular follow-ups can help ensure that the contraceptive method is working effectively for you.

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