There are methods such as basal body temperature and cervical mucus that help to calculate the period of ovulation. You know when it occurs and the different methods that are used to know what are the fertile days.

When does ovulation occurs?

Ovulation occurs when the ovary releases the mature egg. It is routed towards the Fallopian Tubes, which is the place where it is carried out the fertilization.

The time duration of the menstrual cycle varies from one cycle to another and depending on the woman, usually presents between 23 and 35 days. It regularly produces 12 to 16 days before the next period, and although many women still think that they ovulate on day 14, it is proven that this is only an average.

That is to say, the majority of women ovulate on a different day of the menstrual cycle, because this also varies, even the 46% of women have variation in your menstrual cycle of seven days or more.

Symptoms that indicate that these ovulating

A fifth of women feel pain in the lower abdomen, that can last a few minutes or even a few hours. These occur days before menstruation and is due to the activity of the ovaries.

You can use the simple Calculator of ovulation so that you have data to approximate your day of ovulation.

Methods to know if you are ovulating

  • Basal body temperature:

During ovulation occurs the hormone progesterone, which increases body temperature between 0.5 degrees and 1.0 ºC.

To use this method, you have to be rigorous, and it is recommended that the temperature measurement is carried out in the morning, just wake up, because any movement can increase the temperature. The specialists advise that you always use the same thermometer and that the way to take it is oral or rectal, staying with the thermometer about one to three minutes.

You must have a sheet where you write down your measurements daily, and you will see its evolution, which will allow you to see the pattern that follows your cycle and date of ovulation.

  • Cervical mucus or vaginal discharge: Billings Method

In the days leading up to ovulation, the amount of the flow will increase considerably, in addition, its texture will change. These changes occur due to the increase in the levels of estrogen.

Some people compare the flow that occurs during ovulation with the raw egg, because the mucus becomes more clear, flexible and slippery.

During ovulation, the flow that acted as protection, favours the transport of the sperm through the neck of the uterus, until you get to the Tubes.

  • Test or ovulation test

You can find this type of testing in pharmacies, and, through the measurement of the luteinizing hormone (LH), which predicts with up to 36 hours in advance of your day fertile. This type of analysis is more practical than the baseline measurement and greater effectiveness, in addition, it can also be done at home.


  • If you want to calculate your fertile days and your ovulation day, using the best tool.
  • Record your measurements of basal body temperature and cervical mucus for greater control.
  • Always keep at your fingertips a book of notes.
Read also: ovulation Calculator simple

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