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There are three types of signs and symptoms that are used to diagnose pregnancy. Presumptive signs: amenorrhea, breast tenderness, nausea, fatigue and increased urinary frequency. Probable signs: are detected by the examiner such as enlarged uterus. And this last sign which is characterized by direct evidence of the fetus such as auscultation of FHT fetal heart tone, or positive cardiac activity on ultrasound.
What are the Positive signs.