Pregnancy Test
An pregnancy test can be used to quickly
and accurately determine whether you are pregnant or not
...
A woman who suspects that she may be pregnant will often
purchase an over the counter pregnancy test. Pregnancy
tests are available in many different brands, with single or
multiple tests per package. Most of them require the user
to urinate on a stick or in a cup, but a few test with a drop
of blood instead. Some have a digital readout, and others
will show a plus sign or double line in the event that it
detects enough pregnancy hormone to determine a pregnancy.
Some pregnancy tests are “early” pregnancy tests. That
means that they are designed to detect a small enough amount of
the pregnancy hormone to determine if a woman is pregnant as
early as the first day of a missed period, or even a day or two
before the period is due. The fine print on the boxes
will tell you that 65% of pregnant women had a positive result
when tested two days before the period was due, and the
percentage increased with each passing day. These are
usually accurate, but the most accurate results are achieved
after the period was expected. A woman will not get a
false positive in most cases, but a negative result will occur
if there is not enough pregnancy hormone detectable yet, even
if the pregnancy is positive.
The highest level of pregnancy hormone is found in
first-morning urine. That is the best time to use a
pregnancy test strip. Most of the kind a woman urinates
on need to be saturated with urine in order to work
properly. Therefore, be sure to hold the stick in the
urine stream for 3 good seconds or more.
It takes about 5 minutes for the urine to travel down the
strip and the results to be indicated. The stick must be
read within 10 minutes, or it may indicate a positive result
after 10 minutes, even if the result is actually
negative. Positive results that show up within the first
10 minutes may be very faint. This would happen if it is
early, and the pregnancy hormone is just barely detected.
Even a faint result is a positive result. The woman can
confirm the positive by taking another test a day or two later
to see a darker line appear.
Pregnancy tests are very accurate when used correctly.
But, remember, they must be used at the right time of the
month. Too early, and a false negative result will occur,
due to the need for the pregnancy hormone to be present in a
high enough quantity for the stick to measure. If the
menstrual period is two weeks late, and the pregnancy test is
still negative, an appointment with the doctor might be
indicated.
If you are pregnant, you should call your doctor and make an
appointment. The first pregnancy appointment is usually
at around 12 weeks of pregnancy, in order to be able to hear
the baby’s heartbeat.
For more information about parenting teenagers and
adolescents, see the "resources" section of this website, or go
to articles about teens and adolescents.
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