i am 8 months pregnant now ,i want to know which baby . Bipartietal diameter 7.6 cm,head circumference 27.4 cm ,femoral lingth 6.1cm , abdominal circumference 26.1 cm ,f.heart rate 142bpm ,foetal movements Good ,foetal weight 1644g+/-247g cervical length 3.1cm, placenta Anterior,amniotic Fluid ADEGUATE,Impression SLIUG 30WK +/-3 Cephalic spine to right .