There are many different signs of pregnancy, some physical and some emotional. It seems hard to believe that body changes can cause symptoms of pregnancy very early in the process, but the body's response to the developing fetus is dramatic. Hormonal changes are responsible for early symptoms of pregnancy, and these changes affect each woman differently. Some women experience severe symptoms while others hardly notice any changes.
Lack of Menstrual Period
The most noticeable sign of pregnancy is the lack of a menstrual period. Women who are actively trying to become pregnant often use this as their first clue that it is time to take a pregnancy test. Hormonal changes prevent the uterine lining from shedding, which stops the menstrual period.
Nausea
Commonly referred to as morning sickness, many women experience nausea during their pregnancy. According to the University of Maryland Medical Center (UMMC), researchers believe that the hormone hCG, or human chorionic gonadotropin, is responsible for morning sickness. High levels of this hormone increase levels of acid in the stomach and heighten the sense of smell, both of which can lead to everything from an unsettled stomach to all-day-long vomiting that requires hospitalization.
Changes to the Breasts
Changes in the breasts are a common sign of pregnancy. These changes include increased tenderness, swelling and changes in the appearance of the areolas. The areolas may become darker or develop small bumps.
Cravings and Aversions
The rapid change in hormones is responsible for the development of particular cravings as well as aversions, according to the Mayo Clinic. Many women crave foods that they have never eaten or enjoyed before during their first trimester. Aversions to particular types of foods are common as well. For many women, their sudden queasiness at the thought of a morning cup of coffee is the first sign that they may be pregnant.
Frequent Urination
The body produces additional fluid to provide essentials for the fetus, including amniotic fluid and a blood supply. The additional fluid, plus added weight from the baby pressing on the bladder, increase the need to urinate. Expect to develop this symptom toward the middle to end of the first trimester.
Spotting
One troublesome sign of pregnancy is spotting, or bleeding. According to the UMMC, approximately 25 percent of pregnant women experience spotting during the early stages of pregnancy. Stomach cramps sometimes occur along with spotting. Bleeding may indicate a possible miscarriage, so it is important to report this symptom to your physician.
