File talk:Stage18 bf10.jpg
From Embryology
Embryo in gestational sac
http://www.flickr.com/photos/lunarcaustic/5036733982/in/set-72157617368698808
Embryo received with membranes intact. 1.6cm. EGA approximately 6-7 weeks from conception.
This photo was taken on September 29, 2010 using a Nikon D700.
Image cropped and sized to 1200px
6-7-weeks-intact-sac-1200px-crop.jpg