The signs of pregnancy are broken up into three categories: presumptive, probable, and positive signs.
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Presumptive signs, which means that an individual is possibly pregnant, include amenorrhea (absence of menses) nausea/vomiting, fatigue, increased urinary frequency, and breast changes.
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Probable signs, which means that an individual is more than likely pregnant, include abdominal enlargement, Braxton-Hicks contractions (also known as false labor), cervical changes, and a positive urine pregnancy test.
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Positive signs, which confirm pregnancy, include detection of a fetal heartbeat, fetal movement felt by a healthcare provider, and visualization of the fetus through ultrasound imaging.