Pregnancy Sex

Here's How to Calculate a Woman's Fertility

, – Calculating the fertile period is arguably the simplest way to increase the chance of pregnancy. The woman’s fertile period itself revolves around the time of ovulation. About five days before ovulation occurs. So, how do you calculate your fertile period?

The Ogino Knaus calendar

For those of you who want to calculate your fertile period, you can use this one method. The method is not difficult, here is the explanation:

  1. Record the date of your period for the last 6 to 12 months.

  2. Once known, subtract 18 days from the shortest menstrual cycle for 6 months to determine the start of the fertile period.

  3. Next, subtract 11 days from the longest menstrual cycle to determine the end of your fertile period.


After recording the menstrual cycle for approximately six months, it was found that the longest cycle was 31 days and the shortest was 26 days. Then: 31-11 = 20 days, 26-18 = 8 days

So, the estimated fertile period lasts from the eighth to the 20th day.

How to find out a woman’s fertility rate

Generally, this woman’s fertile period ranges from 12-16 days before the next menstrual period. In other words, the average woman is fertile between the 10th and 17th day after the first day of her last menstrual period. However, this applies to those who have regular menstrual cycles of 28 days. For those who are different, you can try to calculate your own fertile period, like using the method above.

Characteristics of Fertile Period

In addition to the method above, there are also features of the fertile period that we need to know. These indicators can strengthen the prediction of the most fertile day. Well, here are the characteristics.

1. Mucus from the mouth of the uterus

This lonely change can indicate changes in the levels of the hormone estrogen in the body. This condition is also a sign whether ovulation is happening soon. This mucus is usually clear, slippery, and elastic, like raw egg whites when it is fertile.

2. More passionate

The fertile period can also be characterized by a more passionate feeling. Some women usually experience this, are more energetic, and are easier to socialize when experiencing fertility.

Not Just Men, Women Can Also Do Fertility Tests

3. Increased Basal Body Temperature

Basal temperature means your body temperature when you wake up in the morning. The normal basal temperature is 35.5 36.6 degrees Celsius. Well, this increase in basal temperature can indicate that the body is ovulating.

4. Pain in the stomach or back

Mild to severe pain in the abdomen or one part of the back, can also mark the fertile period. The reason is, some women feel this around the time of ovulation.

Well, besides calculating when the fertile period occurs, some of the above features can also be a sign that we are in a fertile period. What needs to be emphasized, even though you are planning a pregnancy, you should not focus too much on calculating the fertile period. Because, according to fertility experts from the Massachusetts General Hospital, someone who is too focused on calculating the correct fertility period can actually be stressful.

Want to know more about the problems above? Or want to discuss with the doctor further? To do a checkup, you can immediately make an appointment with a doctor at the hospital of your choice here . It’s easy, right? Come on, download the application now on the App Store and Google Play! It’s easy, right?