How Will You Know You are Pregnant

Women may have all of these, none of these, or any combination of these symptoms. Non-pregnant women may have these symptoms. Different pregnancies in the same woman may cause different symptoms. It can be very confusing and stressful; in fact, stress over whether or not one is pregnant can cause symptoms of pregnancy! How to sort it all out? The most common sign of pregnancy is missing a period (called "amenorrhea"), especially if the woman has been having regular menses prior to missing her period. This occurs because hormones elaborated by the corpus luteum* maintain the uterine lining for implantation of the embryo. While there are many causes of amenorrhea, in women of child-bearing age pregnancy is one of the most common. It is also possible to be pregnant while continuing to menstruate, although this is very rare. Nausea in pregnancy is commonly known as "morning sickness," despite the fact that it can occur at any time of the day. Most commonly it lasts for a few hours, then recedes. It usually begins at about 4 to 8 weeks gestation (calculated from the first day of the last menstrual period). It is caused by a hormone called human chorionic gonadotropin (hCG, the same hormone measured in pregnancy tests), which usually peaks at about 12 to 14 weeks gestation. Levels of hCG decrease rapidly after their peak, and the nausea generally disappears at the beginning of the second trimester. Rarely, the nausea can continue throughout the pregnancy. Nausea in pregnancy is commonly known as "morning sickness", despite the fact that it can occur at any time of the day. Most commonly it lasts for a few hours, then recedes.

Breast swelling and tenderness is a result of rapid swelling of the blood vessels called vascular engorgement. There may also be a feeling of tingling and heaviness in the breasts. This usually starts at 4 to 8 weeks gestation and is generally more prevalent in first pregnancies. The swelling usually persists throughout the pregnancy, but the tenderness ordinarily improves after several weeks.

Fatigue is a prominent symptom in early pregnancy. Its cause is unknown, but it occurs so frequently it can't be ignored as an early symptom. As a rule, this feeling disappears in the second trimester (although other reasons for fatigue may take over by then and cause the symptom to persist). Regular exercise is the best cure for fatigue in pregnancy, paradoxical as it may seem. It is possible to diagnose pregnancy by physical examination in the physician's office, but this is done very infrequently in these days of home pregnancy tests. It is very difficult to diagnose by examination alone until 6 to 8 weeks gestation, by which time most women will have found out one way or another.
The newer home pregnancy tests are just about as accurate as laboratory testing, both being correct about 97 to 98 percent of the time.


Definitive testing for pregnancy these days is done by testing for hCG, either in urine or in blood.** The newer home pregnancy tests are just about as accurate as laboratory testing, both being correct about 97 to 98 percent of the time. The first morning urine should be used, since the hCG hormone is more concentrated then. A test will be positive when the hCG level is at least 25 mIU, which occurs about 4 to 6 weeks after the first day of the last menstrual period. It is generally advisable to wait about two weeks after missing a period to test, since that reduces the number of false positives (thereby reducing the cost of testing).

Once it is determined that the woman is pregnant, she should schedule an appointment for her first prenatal visit. The best time for this is usually between 10 to 12 weeks gestation, since that is when we can expect to first hear the heart tones during examination. There is no significant advantage to being seen earlier unless the woman is having problems. One should try to avoid being seen later than 14 weeks gestation, since that causes problems with dating the pregnancy accurately.
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Am I Pregnant The Earliest Possible Signs Of Pregnancy

Some women know from the moment of conception. Others know from some secret signal they or their husbands sense or become aware of. Still others don't have a clue until their tummies bulge and their periods finally stop! We are talking about the very first signs of pregnancy: those tiny clues your body sends that are an indication of things to come.

For some women, it's physical. Shelley Divnich Haggert, a mother of three from Windsor, Canada, knew exactly when she became pregnant – at least after the first one.

"It's the oddest thing," says Divnich Haggert. "My feet get hot from almost day one. I can't stand having socks, blankets or anything else on them."

For others it's emotional. "The biggest sign came Thanksgiving weekend," says Trina Lambert, a mother of three from Englewood, Colo. "I was working on my Christmas cards and was addressing and stamping the envelopes. I had out my inexpensive return address labels. When I looked up again, my dog had grabbed them and spread several torn labels around the floor. I burst into tears over this!" It only took Lambert a minute to realize it wasn't that big of a deal, but she wondered why she reacted so strongly. When she missed her period the next week she took a pregnancy test and sure enough, she discovered she was about 4 weeks pregnant. It's the Little Things

Dr. Randy Fink, an OB/GYN in private practice in Miami, Fla., says many women can appreciate and detect bodily changes even before they miss a period, though, obviously, a missed period for a sexually active woman is a good reason to do a pregnancy test.

"I think many women know they are pregnant before missing the period because most women have a very innate sense of their body and recognize when something has changed, especially as it relates to pregnancy," says Dr. Fink. "Early pregnancy is a time when the organs are developing, and the embryo can be most prone to damage from things a mother might do if she was unaware. Perhaps one of the reasons our species perpetuates is because moms have a subtle internal alarm that sounds when pregnancy occurs and causes her to alter her behavior."
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