EGG QUALITY
WHY IS IT HARDER TO GET PREGNANT AS WE GET OLDER?
Females are born
with a certain number of eggs. As a woman ages, the number of eggs, as well as
the quality of the eggs, declines. As a result, a woman over 35 years old has a
lower chance of getting pregnant and a much higher chance of having a
miscarriage or a baby with congenital problems (such as Down’s syndrome) than a
younger woman does.
HOW CAN I TELL IF MY EGGS ARE A PROBLEM?
Age alone is a strong
predictor of successful pregnancy. There are also blood tests that can help your
doctor/nurse practitioner determine the level of your fertility. Two blood tests
that are commonly done are called FSH and Estradiol. If the results of these
blood tests are high, your chances of becoming pregnant and having a baby are
decreased. Although your blood test results may change from month to month, the
highest FSH and Estradiol results are used to predict your chances of success.
If your blood test results are normal, your doctor may order a Clomiphene Citrate Challenge
Test (CCCT), that will involve drawing a blood sample before and after you
take a fertility drug called Clomid ® . These blood
tests will help your doctor tell if your ovaries are working properly. A poor
result generally predicts a decreased chance of conceiving and successfully
maintaining a pregnancy. Unfortunately, if blood tests indicate a diminished
chance of conceiving, there are no drugs or treatment to help your own eggs.
However, your doctor may prescribe fertility drugs if your test results are
good. If you respond well to these drugs and/or if you are over age 38, your
doctor may suggest moving quickly to an advanced fertility treatment called In
Vitro Fertilization (IVF).
WHEN SHOULD I WORRY?
If a female is younger than 35 and has not become
pregnant after trying for one year, or if she is 35 years or older and has not
become pregnant after trying for six months, she should call her doctor/nurse
practitioner. An infertility care provider will then start testing for
infertility.