What is ovulation?
Normally, ovulation takes place once a month, 14 days before the onset of menstruation. The ovary, genital gland located in the abdomen, expels a ripened egg. It is then housed in the trunk of the uterus, in the expectation of being fertilized by a sperm. The life of this egg is very short: 12 to 24 hours.
By also taking into account the life expectancy of sperm into the cervix (3 to 5 days on average), we can say that the fertile period is from 4 days before ovulation and up 24 hours.
How to calculate my ovulation date?
Ovulation always occurs 14 days before the next period. If you have very regular menstrual cycles, so you can easily calculate it.
For example, if your periods are scheduled for 27 this month, you calculate 27-14 = 13: ovulation on the 13th of the same month.
This technique is against unusable if your cycles are irregular, because you can not predict the starting day of your period. He then there are other ways to determine your ovulation date.
Knowing the ovulation date through urine tests
Urinary ovulation tests are sold in pharmacies. These tests react to the presence of luteinizing hormone whose concentration increases sharply in the 24 to 36 hours before ovulation. You can perform this test a few days before the middle of your cycle, by dipping the strip in urine. A positive test indicates that you are close to your ovulation period: the right time to try to make a baby.
Ovulation and temperature curve
Measure your temperature curve is recommended when you have trouble getting pregnant. This lets you know if you have an ovulation each month and learn about the length of your cycles.
The principle: you have to take your temperature every morning at the same time for at least two or three menstrual cycles, with the same thermometer and always in the same way (eg. Oral or rectal). Noting each day the temperature obtained, normally you will notice two periods per cycle: one in which your temperature is low enough (average 36.5 ° C), the other a little higher (around 37 ° C).
This temperature rise is due to the production of progesterone (hormone) after ovulation: ovulation therefore be the day you notice the temperature rise.
Also note anything that might upset your temperature curve (eg. flu-like illness, consumption of alcoholic beverages). The data can then be analyzed by a doctor as part of a fertility problem research.
Read also: Feel like pregnancy: what if baby slow to arrive?
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