Test
for Pregnancy
There
are two basic types of pregnancy tests,
-
Blood
test and
-
Urine
test.
They
are both used to test for the presence of Human Chorionic
Gonadotropic
(hCG). hCG is secreted in your urine and detected in your
blood beginning at different times during pregnancy.
Blood test are the
more accurate of the two types of testing. They cannot only tell you
if hCG is present, but a quantitative hCG can tell you how much hCG
is present.This can be helpful in dating a pregnancy, or
watching the levels to observe the well-being
of the pregnancy. (hCG usually doubles about every two days
during the first few weeks of pregnancy.)
Urine
tests are accurate for what they detect the presence of hCG.
However, the amounts of hCG detectable by home pregnancy tests and
lab urine pregnancy test varies.
The
most sensitive test that has found measures about 25 mIU/ml of
hCG in the urine.
Home
tests are accurate enough if you follow the
instructions. This means reading all of the instructions
before you start the testing.
If
you choose to use a home urine pregnancy test, you should use the
following advice to help make the test more accurate :
-
If
you are not using first morning urine, make sure that your urine
has been in your bladder for four hours
-
Do
not drink excessive amounts of fluid in an attempt to increase the
volume of urine, this can dilute the urine, making hCG not as
detectable.
-
If
you are taking any medications, including fertility drugs, read the
package inserts before testing to see if your medications will
affect the results.
If
you pregnancy test is positive make sure that you seek prenatal care
from a Qualified doctor or midwife.
Generally
it expected that women will wait until the first day of their missed
period to take a home pregnancy test, as in most instruction
booklets. Blood tests can show possible pregnancies sometimes at
10-12 days post- ovulation.
Seven
days after the date you assume was conception is not long enough for
you body to produce enough hCG
to show positive on a urine test. Most blood test would be negative
at this point as well