My last date of periods is 29 january 2015.. now i am 30 week 4 day pragnent.. my ultra sound is may be not fine thatz why em so much confues.. my baby BPD is 7.5 cm, FL 5.4 cm, AC 24 cm, EFBWT 1.4 kg, placental maturity Grade 1... Doctor plzz tell mei is this,Normal baby or week ???