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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Which among the following is the MOST diagnostic sign of pregnancy?
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The correct answer is  Presence of fetal hea sounds is an absolute diagnostic sign of pregnancy. Other absolute signs of pregnancy are: Palpation of fetal pas and perception of active fetal movements Ultrasonographic evidence of gestational sac and embryo in early pregnancy and later. Probable signs: Change in size, shape and consistency of uterus Softening of cervix Osiander's sign, Chadwick's sign, Goodell sign Abdominal enlargement Braxton Hicks contraction External and internal ballottement Ref: Essential of Obstetrics By Arulkumaran page 39