Blesse Shows All the Signs of Pregnancy, but She Does

Multiple Choice

Blesse shows all the signs of pregnancy, but she does not know how many weeks along she is. She goes for an ultrasound, and her physician states that he sees a blastocyst. Based on her physician's comment, how many weeks along is Celeste's pregnancy?

A) Less than two weeks
B) More than eight weeks
C) Between 16-17 weeks
D) Exactly 25 weeks