A 22-year-old female asked:
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which gestational age is more accurate, lmp based or ultrasound one? by lmp i am 27weeks and 4 days.ultrasound says 28 weeks

1 doctor answer
Dr. Kent Childs
28 years experience Obstetrics and Gynecology
Gestational age: Your LMP is usually more accurate than ultrasound especially at 27+ weeks. Ultrasound is more accurate in the first trimester and gets less accurate the further along you get in the pregnancy.
Answered on May 18, 2016
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