From a textbook on how to do abortions:
“Very small embryo-fetal parts may be apparent at 9 weeks’ gestations and become easier to identify thereafter.”
Karen Meckstroth MD, MPH, and Maureen Paul MD, MPH, “First-Trimester Aspiration Abortion,” Management of Unintended and Abnormal Pregnancy. Ed. Paul, Lichtenberg, Borgatta, Grimes, Stubblefield and Creinin. (Wiley-Blackwell, 2009), 149.
She is probably counting 9 weeks from the last menstrual cycle. The picture above is of the 9-week-old fetus, counting by conception. Below is a picture of what a 9-week-old fetus would look like when counted from the last menstrual period. As you can see, he also has parts.
