M-mode shows good cardiac activity noted.(154 BPM)

The placenta is mid-anterior in location with grade 1 maturity.

The amniotic fluid is adequate.

Remarks:
Single live intrauterine pregnancy in cephalic presentation with composite ultrasonic age if 23weeks.
mid anterior placenta ,Grade 1 maturity.



Estimated Fetal weight = 532 grams.



Questions :What is the meaning of single live intrauterine pregnancy in cephalic pregnancy?
is the fetal weight is normal for my 23weeks baby?