How to calculate ovulation period when menstruation is delayed

Many women who want to get pregnant often calculate the ovulation period before having sex, which increases the success rate of pregnancy. However, the method of calculating the day is effective for calculating the ovulation period, but how to calculate the ovulation period when the menstrual period is delayed? If your menstrual period is irregular, calculating the days is not accurate, but you can use basal body temperature measurement to find out the ovulation period, or the easiest way is to buy test strips.

1. Cervical mucus method

First, wash your fingers thoroughly, spread your legs, and use your lower abdomen to push the uterus forward. Then put your fingers into the vagina, and you will feel a solid mass, which is the cervical canal. If you are in the ovulation period, it will be full of mucus. Take a little mucus and try to pull it. If it is the day of ovulation, the mucus can be pulled to 10-15 cm.

2. Basal body temperature method

Before going to bed every night, shake the thermometer to below the scale. When you wake up the next day, do not move or talk. Pick up the thermometer, place it under your tongue, and hold it in your mouth for five minutes. Measurement should start from the first day of menstruation (the day when menstrual bleeding occurs). Record the body temperature measured daily and make a basal body temperature chart.

3. Intermediate pain method (pain on ovulation day)

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 only 15% of women experience middle pain and cannot use this method.

4. Urine test

Under the guidance of a doctor, you can monitor the follicles with B-ultrasound. When the follicles reach about 1.8 cm, measure urine LH every 2-4 hours. A drop peak can be considered as a urine LH peak. Ovulation occurs within 12-24 hours of the peak. If it is not convenient to monitor follicles, you can combine the previous menstrual cycle and test urine LH two days before the expected ovulation. The initial interval can be longer. When the urine LH value rises significantly, you can monitor it every 2-4 hours.