Introduction to pregnancy symptoms
Most women equate a missed menstrual period with the possibility of being pregnant, but other symptoms and signs are experienced by most women in the early stages of pregnancy.
It's important to remember that not all women will experience all of these symptoms or have the symptoms to the same degree.
Even the same woman can have different types of symptoms in a subsequent pregnancy than she had in previous pregnancies.
The following are the most common pregnancy symptoms in the first trimester.
It's important to remember that not all women will experience all of these symptoms or have the symptoms to the same degree.
Even the same woman can have different types of symptoms in a subsequent pregnancy than she had in previous pregnancies.
The following are the most common pregnancy symptoms in the first trimester.
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Missed period
A missed menstrual period is most often the first sign of pregnancy. Sometimes a woman who is pregnant may still experience some bleeding or spotting around the time of the expected period.
This small amount of bleeding that occurs at the time of the expected menstrual period happens when the fertilized egg attaches to the uterine wall and is referred to as implantation bleeding.
This small amount of bleeding that occurs at the time of the expected menstrual period happens when the fertilized egg attaches to the uterine wall and is referred to as implantation bleeding.
Any bleeding during pregnancy is typically lighter than that observed during the regular menstrual period.
However, if a woman does not have regular menstrual cycles, she may notice some of the other symptoms of early pregnancy before it is apparent that the menstrual period has been missed.
A missed menstrual period also does not confirm that a woman is pregnant even if she has regular cycles, since both emotional and physical conditions may cause absent or delayed periods.
However, if a woman does not have regular menstrual cycles, she may notice some of the other symptoms of early pregnancy before it is apparent that the menstrual period has been missed.
A missed menstrual period also does not confirm that a woman is pregnant even if she has regular cycles, since both emotional and physical conditions may cause absent or delayed periods.
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Breast swelling, tenderness, and pain
Feelings of breast swelling, tenderness, or pain are also commonly associated with early pregnancy.
These symptoms are sometimes similar to the sensations in the breasts in the days before an expected menstrual period. Women may also describe a feeling of heaviness or fullness in the breasts.
These symptoms can begin in some women as early as one to two weeks after conception. Women may also notice a deepening of the color of the area surrounding the nipple (called the areola) and/or a dark line going down from the middle of the central abdomen area to the pubic area (known as the linea nigra).
Some degree of darkening of the areola persists after pregnancy in many women, but the linea nigra typically disappears in the months following delivery of the baby.
These symptoms are sometimes similar to the sensations in the breasts in the days before an expected menstrual period. Women may also describe a feeling of heaviness or fullness in the breasts.
These symptoms can begin in some women as early as one to two weeks after conception. Women may also notice a deepening of the color of the area surrounding the nipple (called the areola) and/or a dark line going down from the middle of the central abdomen area to the pubic area (known as the linea nigra).
Some degree of darkening of the areola persists after pregnancy in many women, but the linea nigra typically disappears in the months following delivery of the baby.
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Nausea and vomiting
Nausea and vomiting are also common in early pregnancy. Traditionally referred to as "morning sickness," the nausea and vomiting associated with early pregnancy can occur at any time of the day or night. Its typical onset is anywhere between the 2nd and 8th weeks of pregnancy.
Most women who have morning sickness develop nausea and vomiting about one month after conception, but it may develop sooner in some women.
Most women who have morning sickness develop nausea and vomiting about one month after conception, but it may develop sooner in some women.
Elevations in estrogen that occur early in pregnancy are thought to slow the emptying of the stomach and may be related to the development of nausea.
Accompanying the characteristic "morning sickness" may be cravings for, or aversions to, specific foods or even smells.
It is not unusual for a pregnant woman to change her dietary preferences, often having no desire to eat previous "favorite" foods. In most women, nausea and vomiting begin to subside by the second trimester of pregnancy.
Accompanying the characteristic "morning sickness" may be cravings for, or aversions to, specific foods or even smells.
It is not unusual for a pregnant woman to change her dietary preferences, often having no desire to eat previous "favorite" foods. In most women, nausea and vomiting begin to subside by the second trimester of pregnancy.
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Fatigue and tiredness
Fatigue and tiredness are symptoms experienced by many women in the early stages of pregnancy.
The cause of this fatigue has not been fully determined, but it is believed to be related to rising levels of the hormone progesterone. Fatigue is another symptom that may be experienced early, in the first weeks after conception.
The cause of this fatigue has not been fully determined, but it is believed to be related to rising levels of the hormone progesterone. Fatigue is another symptom that may be experienced early, in the first weeks after conception.
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Abdominal bloating
Some women may experience feelings of abdominal enlargement or bloating, but there is usually only a small amount of weight gain in the first trimester of pregnancy.
In this early stage of pregnancy a weight gain of about one pound per month is typical.
Sometimes women also experience mild abdominal cramping during the early weeks of pregnancy, which may be similar to the cramping that occurs prior to or during the menstrual period.
In this early stage of pregnancy a weight gain of about one pound per month is typical.
Sometimes women also experience mild abdominal cramping during the early weeks of pregnancy, which may be similar to the cramping that occurs prior to or during the menstrual period.
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Frequent urination
A woman in the early stages of pregnancy may feel she has to urinate frequently, especially at nighttime, and she may leak urine with a cough, sneeze, or laugh.
The increased desire to urinate may have both physical and hormonal causes.
Once the embryo has implanted in the uterus, it begins to produce the hormone known as human chorionic gonadotrophin (hCG), which is believed to stimulate frequent urination. Another cause of frequent urination that develops later is the pressure exerted by the growing uterus on the bladder.
The increased desire to urinate may have both physical and hormonal causes.
Once the embryo has implanted in the uterus, it begins to produce the hormone known as human chorionic gonadotrophin (hCG), which is believed to stimulate frequent urination. Another cause of frequent urination that develops later is the pressure exerted by the growing uterus on the bladder.
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Elevated basal body temperature
A persistently elevated basal body temperature (the oral temperature measured first thing in the morning, before arising from bed) is another characteristic sign of early pregnancy. An elevation in the basal body temperature occurs shortly after ovulation and persists until the next menstrual period occurs. Persistence of the elevated basal body temperature beyond the time of the expected menstrual period is another sign of early pregnancy.
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Melasma (darkening of the skin)
Some women may develop a so-called "mask of pregnancy" in the first trimester, referring to a darkening of the skin on the forehead, bridge of the nose, upper lip, or cheekbones. The darkened skin is typically present on both sides of the face.
Doctors refer to this condition as melasma or chloasma, and it is more common in darker-skinned women than those with lighter skin. Melasma can also occur in some conditions other than pregnancy.
Women who have a family history of melasma are at greater risk of developing this sign of pregnancy.
Doctors refer to this condition as melasma or chloasma, and it is more common in darker-skinned women than those with lighter skin. Melasma can also occur in some conditions other than pregnancy.
Women who have a family history of melasma are at greater risk of developing this sign of pregnancy.
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Mood swings and stress
Mood swings and stress are common symptoms reported by many women in the early stages of pregnancy.
Many women in the early stages of pregnancy describe feelings of heightened emotions or even crying spells.
The rapid changes in hormone levels are believed to cause these changes in mood.
Pregnant women may also notice more rapid and drastic changes in their moods.
Many women in the early stages of pregnancy describe feelings of heightened emotions or even crying spells.
The rapid changes in hormone levels are believed to cause these changes in mood.
Pregnant women may also notice more rapid and drastic changes in their moods.
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