Will ovulation occur on the 13th day of menstruation?

Women all have an ovulation period, which can be calculated based on the date of their menstruation. Women are more likely to conceive if they have sex during their ovulation period, so many women will calculate their approximate ovulation period themselves. Since each woman's menstrual cycle is different, her ovulation cycle is also completely different. Women should estimate according to their own situation. So, will ovulation occur on the 13th day of menstruation?

1. Will ovulation occur on the 13th day of menstruation?

The Aquino method is also known as the mathematical formula method, which means that the ovulation day is 14 to 15 days forward from the last day of the menstrual cycle (that is, the first day of the next menstruation). If the next menstrual period is on the Nth day, then the ovulation day this time is the N-14th day. Although the length of the menstrual cycle varies from person to person, and even the length of each cycle for the same person is not exactly the same, the luteal phase lasts for most people at 14 days, which is constant. Changes in the menstrual cycle are caused by differences in the follicular phase. So we can use mathematical formulas to simply predict the ovulation day.

Second, the method of calculating the ovulation period:

1. Extrapolation

Usually, women ovulate about 2 weeks (12-16 days) before their next menstrual period. Therefore, you can calculate it yourself based on the rules of your previous menstrual cycles. However, the ovulation period may change due to the influence of environment, disease, mood and medication, so the calculation of ovulation date should be based on actual conditions.

2. Test ovulation period "lipstick"

It is named because of its shape which resembles lipstick. It is actually a miniature microscope and a set of light-sensitive light sources used to observe the images of estrogen crystals in women's saliva. Women's estrogen crystals will produce three different images during the safe period, the ovulation period, and the ovulation period. The safe period, the ovulation period, and the ovulation period in their physiological cycle can be confirmed by observation.

3. Middle pain method

Some people experience pain in the lower abdomen between menstrual periods, just before ovulation, which is called intermediate pain or ovulation pain. Experts have investigated and found that 97% of the pain in the middle is felt before ovulation. Therefore, if there is pain in the middle, it can be assumed that ovulation will occur within 24 hours. This method may be the easiest and simplest way for some people. The disadvantage is that a small number of people do not have the middle pain and cannot use this method.