How Could A Woman Not Know She Is Pregnant?

It may seem highly implausible for a woman to go through nine months of pregnancy without realising she has a baby on the way. Yet experts say it happens more often than most people think.

The phenomenon is called cryptic pregnancy or pregnancy denial, and according to one British study, it occurs in approximately one in 2,500 pregnancies.

Just last week, a woman in Massachusetts visited an emergency room complaining of severe back pain and just over an hour later, she was holding her brand new 10-pound baby girl. The new mom, Katie Kropas, said she had no idea she was expecting a baby.

There are a number of factors that may help explain how a woman could have no idea she is with a child.
Inaccurate home pregnancy tests

The first impulse for many women who think they are pregnant is to urinate on a stick. Home pregnancy tests, available at any drugstore, measure levels of a hormone called hCG (human chorionic gonadotropin) in urine. This hormone, which supports a woman’s reproductive system and is produced by cells that will develop into placenta, becomes elevated upon conception.

But sometimes home pregnancy tests don’t work. Though these tests claim to be as much as 99 per cent accurate, false negatives do occur. A woman may use a test too early when her body is not producing high enough levels of hCG for the test to detect a change. The hormone level begins to rise once the embryo has implanted into the wall of the uterus, seven to 10 days after ovulation, so taking a test too early might deliver a false negative.

There are a wide range of pregnancy tests on the market and all have varying levels of sensitivity. Sometimes also, a woman’s urine may be too diluted, which will result in a lower hormone level concentration.
Extra weight

A woman who is already on the heavy side and carries extra weight around her middle may not notice if she puts on extra pounds, especially since pregnancy weight gain happens gradually over nine months. In the recent case in Massachusetts, the unwitting new mother said, “I thought I had put on some Christmas season weight, but I never thought I was pregnant. Never”.
Minimal pregnancy-related symptoms

Some women are lucky enough not to experience any telltale symptoms of pregnancy such as fatigue, morning sickness, headaches, food cravings, back pain and soreness. In some cases, a woman may have less severe symptoms that she mistakes for other health conditions such as a case of food poisoning, stress or indigestion.

“Very often, especially in your first pregnancy, you are really not aware of what you are feeling and we often have women joke and say they are feeling gas pains or they can attribute it to other natural conditions,” said Dr Kim Dever, the Chair of Obstetrics and Gynecology at South Shore Hospital in South Weymouth, Massachusetts, where Kropas delivered her surprise baby.

Dever said it was not the first time she had seen a pregnant woman miss all the signs. “We do about 3,500 births a year, and we probably see this a few times a year,” she told CBS Boston.
Irregular menstrual cycle

A woman’s period typically stops once she’s conceived, but some women still continue to experience spotting throughout. It is not usually equal to a full period, but for some expectant mums it may be enough that they don’t recognise a sudden difference.

Additionally, not all women have a clockwork-like menstrual cycle. Some may have a cycle that occurs every 40 or 45 days and some women regularly miss periods here and there but are still healthy. In those cases, too, it may be hard to recognise the significance of a change in an already irregular pattern.
A baby that barely moves in the womb

Most babies kick in utero but some do so less than others. Some mothers who are unaware of their pregnancy may have a baby that moves less frequently, which may mean movements are mistaken for digestive conditions.

Research shows that women who are overweight tend to be much farther along in pregnancy before they feel their baby kick. The position of the placenta may also impact whether a mother feels her baby’s movements. If the placenta is located on the front wall of a woman’s uterus, this could provide extra cushioning and may prevent the woman from feeling the pitter-patter of tiny feet.
Being diagnosed with infertility

Though reproductive medicine has made it much easier to predict who will and won’t be able to conceive, fertility experts and extensive tests are not always right. Plenty of women who long ago gave up hope of having a child may suddenly find themselves pregnant. There have been some cases where a woman has actually mistaken her by Browser Shop” href=”#”>pregnancy symptoms for menopause.

Similarly, tubal ligation and vasectomies, while highly effective, are not 100 per cent infallible. A woman who believed she could not possibly get pregnant may be slow to recognise she was mistaken.
Effects of stress and denial

The mind is powerful. A woman may be in denial about her pregnancy and ignore or find other explanations for the signs of it. This can occur in women without a history of mental illness, and may be influenced by outside stressors in life such as separation from a partner or financial problems.

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