Hi, If your gestational age
is confirmed to be 9 weeks by any earlier ultrasound
scan & your present ultrasound is from a reliable place then a missed miscarriage
is the diagnosis for which D&C is one option, apart from medical & expectant management. But if you don't have any previous ultrasound confirming gestational age or you do not trust the source of current ultrasound scan you may wait for 10-14 days and go for a repeat ultrasound scan. There is no harm in waiting! Best of luck.