 [ Symptoms ] should i be worried if my baby weighs more than usual for his getstational age  should i be worried if my baby weighs more than usual for his getstational age  i am 17 and a half weeks pregnant and had my level 2 ultrasound done i was told my son weighs 9 oz is that big for his gestational age [ Disease ] hi it is a good sign that your thyroid levels are normal if periods are due take a urine pregnancy test at home and if positive consult a gynaecologist and get a transvaginal ultrasound and blood test done for confirmation…hope this helps