Ovulation test instruction

All girls know that conception occurs during the period of ovulation. It is at this time that the egg reaches its maximum maturity and is ready to merge with the spermatozoon. In order to accurately calculate the most favorable for conception day, and there is a test for ovulation.

Principle of the test


As the ovum ripens, strong hormonal changes take place in the body of the woman, in particular, there are significant releases of the hormone estrogen. As soon as the level of estrogen reaches the value that is necessary for the onset of ovulation, another phase is observed in the woman's body - the release of luteinizing hormone. After this, within a day or two, ovulation is observed. It is during this period that the egg is maximally ready for fertilization. The ovulation test can detect luteinizing hormone in the woman's urine, thereby signaling the onset or absence of the process.

Types of tests

To date, there are several different types of tests that work on the same principle, namely:

  • Test strips.The principle of work is similar to the pregnancy test. The paper strip falls into the urine for 5-10 seconds, after a few minutes, the results are evaluated. If the result is positive, a second strip will appear. The disadvantage of the method can be attributed to its unreliability and inaccuracy.
  • Tests in the form of cassettes or a tablet test.Produced in the form of a plastic case with a digital window. The urine drips onto the cassette, and after a certain time, a result appears in the window in the form of one or two strips. The disadvantage is their high cost.
  • Inkjet tests.They are considered the best and most reliable option for determining ovulation. They need to be lowered under the urine stream for a few seconds, and then wait for the result to appear.
  • Electronic or digital tests.Determine the content of luteinizing hormone in the saliva. It is the most accurate and reliable technique, which completely eliminates the error. Saliva before ovulation changes its properties. When considering the device, you can see specific lines and patterns, which indicate the approach of the egg.
  • Reusable tests.Produced in the form of a device with a set of test strips. After the strips are dropped into the urine, they are inserted into the device and the result is monitored.

In what period should I do the test?

An important parameter that determines the best day for performing an ovulation test is the length of the girl's menstrual cycle. With a regular, normal physiological cycle in 28 days, ovulation occurs approximately at the middle of the cycle, i.e., on the 14th day. But testing is best to start from the 11th day of the cycle. The simplest way is to take 17 from the number of days, the resulting number and become the day when it's best to start using the test. In addition, there are often longer cycles, or, conversely, short. The table below shows the days when testing is best.

Cycle length The day of ovulation
21 6
23 7
25 8
30 13
33 16
36 19
38 21

Rules for using the test

There are several rules that should be followed:

  • testing is better done in the morning;
  • Do not drink large amounts of liquid for several hours before testing;
  • 3-4 hours before the test for ovulation, avoid urination;
  • do not test for the first portion of morning urine - the probability of erroneous results is high.

First, it is necessary to lower the test in a container with urine for 10-20 seconds, and then after 4-5 minutes check it. To obtain the most accurate results, it is best to conduct at the same time of day for several days. To evaluate the final result, you must compare the obtained line (left) with the control line (right). The ovulation test applies an instruction in which it says: the brighter the line obtained, the closer the release period of the luteinizing hormone.

Negative test

If ovulation does not occur, the test will show a negative result. But this is not the only reason for the lack of a second strip. The reason for the negative test can also be:

  • overdue or unsuitable test;
  • the completion of ovulation.

Therefore, in order to avoid mistakes, it is always best to calculate the days that are favorable for conception as well as to use only the best and tested tests.

Erroneous testing

It is important to understand that tests only show a rise or fall in the level of luteinizing hormone. That is why there are cases when such an increase is not a guarantee of ovulation.

Increase in the concentration of luteinizing hormone can occur in such cases:

  • at disturbances in work of hormonal system;
  • in the syndrome of ovarian malnutrition;
  • during postmenopause;
  • with insufficient excretory system, in particular kidneys.

In addition, to raise the level of luteinizing hormone and, as a consequence, other hormones can influence the positive test result. Because of the structural similarity of hCG and luteinizing hormone, the test may be false-positive, although there is no ovulation, and the girl became pregnant. The same applies to follicle-stimulating and thyroid-stimulating hormones.

To stimulate ovulation, hCG injections are sometimes used. In this case, a false positive test result may also be observed.

When can I conceive a child?

In order to become clear when it is worth starting to conceive a child, it is important to remember two rules:

  1. When the ovulation moment approaches, the test becomes positive. That is, it means that in the next few hours a mature egg will enter the fallopian tube and will wait for fertilization.
  2. After an exit from the ovary, the egg cell can exist for about a day. If fertilization does not occur, the egg dies.

Proceeding from this, it is not necessary immediately after finding a positive test result to resort to conceiving a child. It is best to wait about 5-7 hours, so that the ovule must have left the uterine tube. But also to wait too long, more than 12 hours, too, is not worth, otherwise the egg will die.

Sex of the unborn child

To date, there are many different ways to conceive the desired gender of the child. But the most valid and real method is based on ovulation.

Many know what X and Y chromosomes are. This is what determines the sex of the unborn child. If the sperm carries the Y chromosome, then the male embryo will develop, and if the X chromosome, then the female. An important feature is that the spermatozoa "boys" live very little, no more than two days, but move faster. And spermatozoa with X chromosome are less mobile, but they can exist for about 4-7 days. That is, the closer the sexual intercourse is to ovulation, the more likely that a boy will be born.

Principles of conception of the male embryo:

  • Men should avoid hypothermia and overheating, otherwise this will lead to a reduction in the number of sperm carrying the Y chromosome.
  • Sexual intercourse is recommended to be performed on the day of ovulation, before it withstanding 4-5 days without sex.

Principles of conception of a female embryo:

  • In order to survive spermatozoa with the X chromosome, it is best to plan the conception 2-4 days before ovulation, when the test was positive.
  • Stop intercourse during ovulation.