In the middle of the menstrual cycle, there are several fertile days. An ovulation calendar can help you plan your desired pregnancy and avoid unwanted pregnancies. How to compose it?
Instructions
Step 1
Use a formula that calculates ovulation. Based on data of at least six months, calculate how many days your menstrual cycle lasts. The first day is when the bleeding begins. Subtract 14. For example, if your cycle is 28 days, then ovulation occurs on day 14. If the cycle is 25 days - then at 11. Favorable for conception is considered 3-4 days before ovulation and 3-4 days after it. Those. in the first case, 11-18 days are favorable for conception, and in the second - 8-15 days. If your cycle is uneven, then deadlines should be considered. For example, if the cycle ranges from 25 to 28 days, then 8-18 days of the cycle are considered fertile (favorable for conception).
Step 2
Create an ovulation calendar based on your basal temperature. It is measured by inserting a thermometer into the rectum or vagina. You can also measure basal temperature in the mouth, but the latter two methods are considered less reliable. In order for the calendar to be reliable, you should take into account the readings of at least three months. Measure the temperature every day at the same time - immediately after waking up, without getting out of bed, with the same thermometer (preferably electronic). These conditions are very important, without them the readings will not be reliable! Record or graph the results. In the first half of the cycle, the basal temperature is kept at 36, 5-36, 9 degrees. The day before ovulation, it can drop by 0, 1. Then, within three days, the temperature rises to a value above 37, 0 and stays at about this level until the end of the cycle. The day of ovulation is the day after which the temperature begins to rise.
Step 3
A high degree of reliability, unlike all other methods for determining ovulation, is the method of ultrasound examination of the ovaries. An ultrasound scan is performed several times during the menstrual cycle and determines the day when the egg is released from the mature follicle. This method is widely used to diagnose infertility.
Step 4
The day of ovulation can be determined by indirect signs: slight pulling pains in the lower abdomen, increased libido. Hormonal changes during this period lead to an increase in mucous discharge from the vagina. The mucus becomes elastic, slippery, transparent and resembles a raw egg white. Another way to determine ovulation is to use special tests purchased from the pharmacy, which will show whether it has come or not.
