How to calculate ovulation period during irregular menstruation

The ovulation period plays a very important role for women. Women who want to conceive can make good use of this time. Those who do not want to get pregnant need to avoid this period. It has certain reference value. However, many women have menstrual disorders in life, which makes it difficult to measure the ovulation period. Let's take a look at how to calculate the ovulation period if you have irregular menstruation.

Under normal circumstances, the ovulation period is about 14 days before the next menstruation. To be on the safe side, people regard the first 5 days and the day after ovulation as the dangerous period. At this time, we must focus on taking contraceptive measures.

How to calculate the ovulation period for irregular menstruation? Calendar method: For women with irregular menstruation, it can be calculated based on the menstrual cycle of the past 6-12 months: the shortest cycle (number of days) - 21 days, and the period before is the previous safe period. The longest cycle (number of days) is 10 days, and the period after that is the post-safe period. For example, the shortest menstrual period is 28 days and the longest is 37 days. The shortest menstrual cycle is subtracted by 21 (28-21=7) and the longest menstrual cycle is subtracted by 10 (37-10=27). Therefore, the 7th to 27th day after the onset of menstruation are all considered the ovulation period. Observe the cervical mucus: the cervical mucus is often dense in a small quantity, or even with no mucus after the menstruation is over. This is called the "dry period", and it is not easy to get pregnant. In the middle of the menstrual cycle, with endocrine changes, mucus increases and becomes thinner, and vaginal secretions increase, which is called the "wet period". Near the ovulation period, the mucus is clear, smooth and elastic, like egg white, with high stringiness and not easy to break. The ovulation day is 48 hours before and after the last day of the appearance of this mucus. Therefore, when the vagina feels moist, it is the "fertile period". Therefore, for contraception, you need to wait until it is dry again for three full days and then have sexual intercourse after the fourth night.

Measuring basal body temperature: Women usually ovulate when their basal body temperature rises from low to high before it rises. The three days when the basal body temperature is at an elevated level is the "fertile stage", and the three days after that is the safe period. This method can only indicate that ovulation has occurred, but cannot predict when ovulation will occur. Measure and record your body temperature after waking up from 6 hours of adequate sleep and before engaging in any activities: Under normal circumstances, the body temperature rises by 0.3℃-0.5℃ after ovulation; if there is no ovulation, the body temperature does not rise and remains low throughout the entire cycle. It is necessary to test repeatedly and connect the points and lines in a chart for analysis. If your lifestyle is irregular, such as night shifts, business trips, insomnia, mood changes, illness, etc., this method cannot be used to determine whether ovulation has occurred.

The above content is an introduction to how to calculate the ovulation period in case of irregular menstruation. I hope it can be of some help to you. It should be noted that women's ovulation period is easily disturbed by external factors. We cannot simply use the ovulation period to conceive and prevent pregnancy. At the same time, the safe period is not absolutely safe. We still need to take measures and be more responsible to each other.