Ovulation, is normally the release of the egg from the
vesicles called follicles in the ovaries in the middle of each menstrual
period. Self-ovulation tests that women can do at home are used to determine
the day of ovulation and increase the chance of pregnancy by having a close
relationship with this day. In order to understand with which mechanism the
ovulation tests performed at home work, firstly how ovulation occurs and how
the menstrual cycle takes place every month should be known.
How and
when does ovulation and menstrual cycle occur?
The day when menstruation begins is the beginning of a
menstrual period and the total menstrual period lasts about 1 month. (Intent is
not just the days of bleeding, but the average one month from the first day of
menstruation to the first day of menstruation.) At the beginning of this
period, the FSH hormone secreted from the pituitary in the brain increases and
gradually causes the egg to grow. The hormone estrogen is secreted from the
growing egg follicle, and this hormone is increasing gradually like FSH. By the
middle of the menstrual period (i.e. 14 days after menstrual bleeding), FSH and
estrogen hormone increase to the highest levels, while a sudden increase in the
secretion of LH hormone from the pituitary. This sudden increase in LH hormone
(LH peak) is the main mechanism for ovulation, that is, ovulation. Ovulation
occurs 24-36 hours after LH increase. Ovulation tests in urine detect this LH
increase. Tests on saliva are also based on increased estrogen. After
ovulation, estrogen, FSH, LH hormones decrease, progesterone hormone starts to
increase. After ovulation, the follicle with the egg turns into corpus luteum
and progesterone is released from there. If pregnancy does not occur, then a
decrease in progesterone will initiate new menstrual bleeding. If pregnancy
occurs, progesterone will maintain pregnancy in the uterus and continue to be
secreted without decreasing.
Urine
ovulation test, (LH test):
Urine test in urine detects the increase of LH hormone
described above. When LH hormone increases in blood, it passes to urine. In
order to catch this LH increase in urine, this test should be done every day
near the day of ovulation. For this purpose, those who are regulars once a
month can start the test 12 days after the menstrual bleeding begins and can
test for 5 days every day. However, for women whose menstrual period is
different, the test start time will change. See the table on the right for
this. For example, individuals with a length of menstrual period, ie, the first
day of one menstrual period to the first day of the other menstrual bleeding,
should start on the 18th day by starting counting from the first day of the
menstrual bleeding, they should test for 5 days. Because ovulation will start
later in these women. Ovulation occurs approximately 14 days before the
"onset" of menstrual bleeding. Ovulation day is difficult to predict
in women whose periods are very irregular, in these cases, you should consult
your doctor about when to start the test.
How to use
the ovulation test (kit)? How is it done?
Depending on the brand of the tests, the way they are made
and read may vary. In some, the urine is placed in the container and the test
stick (ovulation kit) is immersed in the urine. In some, it is done by holding
the test stick to the urine flowing while urinating. The rules of conducting
and reading the test are written in detail in the box of the products, you
should apply them carefully according to those rules. You should not use the first
urine in the morning for the test, this can be misleading. Subsequent urine can
be used. Alcohol, cigarette, antibiotic, painkiller, suppository (ovule), etc.
it does not affect the test, but drugs such as hormone needles (cracking
needles) used for ovulation treatment can affect and mislead the test. Taking
too much water and liquid foods will dilute urine, so the concentration of LH
in the urine decreases and the test may be false negative, so you should not
drink more than 2 hours before doing the test.
When the
ovulation test gives a positive result:
Although it varies by brand, two pink lines usually show that
the test is positive, that there will be ovulation, and the only line indicates
that there will be no ovulation that day. If the test is positive, that is, an
increase in LH is detected, this means that after an average of 24-36 hours
ovulation will occur. In this case, it will be appropriate to have intercourse
24 hours after applying the ovulation test. Because ovulation occurs 24-36
hours after LH increase and the egg cell can survive 24 hours.
Sperm can survive for an average of 3 days, while the woman's
egg can survive for an average of 1 day. Therefore, pregnancy can occur even if
people do not have a relationship on the full ovulation day. For example, in a
woman who will ovulate on the 10th of the month, even if the relationship is on
the 7-8th of the month, pregnancy can occur because sperm can live for 3 days.
Likewise, even if the relationship is on the 11th of the month, pregnancy may occur
because the egg cell can remain alive for 24 hours. For this reason, there is
about 5 days before ovulation and after the woman can get pregnant in each
menstrual cycle. It is impossible to have a pregnancy, although there is a
relationship on other days.
Caution:
Ovulation tests cannot be used as a contraceptive method.
With these tests, it is impossible to determine the day of
ovulation and determine the relationship days accordingly and to protect
against pregnancy. Because the days of sperm and egg survival, pregnancy
occurrence days are variable, not a single day. For example, you may become
pregnant depending on a relationship you have entered before doing the test.
Ovulation
tests with saliva:
These tests are based on detecting the day of ovulation due
to the increased estrogen hormone in the middle of the menstrual period as
described above. It is not as useful as urine tests and they are not so common.
Ovulation
detection by blood test or ultrasonography:
LH hormone can also be measured in the blood by assay and
ovulation depending on its height can be estimated, but this method is not used
much. Instead, the growth of the egg in ultrasonography shows us that ovulation
is approaching. When the egg (follicle) size is about 18-20 mm, ovulation occurs.
In addition, 1 week after ovulation day (21st day of menstruation), it is
determined that there is ovulation that month with the determination of height
in the measurement of progesterone in the blood when necessary. Sometimes, in
the ultrasonography performed shortly after ovulation, fluid detection and
ovulation area can be seen in the abdomen due to ovulation, but this is not
always possible.
-WEIGHT GAIN DURING PREGNANCY
-CLOTHING IN PREGNANCY
-DRUGS USED IN PREGNANCY
-WHAT IS FREE IN PREGNANCY? WHAT IS PROHIBITED?
