Extraordinary Embryo Events!
Days 1-7
Size of (.) at Fertilization Complete Genetic Identity--Sex, Hair Color, etc.
Days 8-14
Size of whites space of (o) at Implantation . Formation of Amniotic Cavity, Placenta, 3 Germ layers
Days 15-21
Development of Heart with heartbeat between 19-22 days, Brain & Spinal Cord, Muscles, Bones/Skeleton, Pancreas.
Days 22-28
Size of full width of (o). Blood circulation, Mouth Opens, Development of Early Brain Chambers, Eyes, Ears, Arm Buds, Thyroid, Vertebrae, Spine, Ribs.
Days 29-35
Size of BB Pellet. Leg Buds, Heart Chambers, Digital Plates, Nostrils, Appendix, Intestines, Pancreas, Kidney, Eye Lenses.
Days 36-42
Size of Pinto Bean. Spine Clearly Visible, Heart Beats 150x Per Minute, Brain Waves Measureable, Eyelids, Nose, Heart Valves, Blood Cells, Joint, Hiccups, Slow Body Movements.
Days 43-49
Size of Pinto Bean. Spine Clearly Visible, Heart Beats 150x Per Minute, Brain Waves Measureable, Eyelids, Nose, Heart Valves, Blood Cells, Joint, Hiccups, Slow Body Movements.
Days 50-56
Size of Small Plum. All Organs Present. Well-defined Fingers, Central Nervous System Begins, Primitive Skeletal System Complete, Joints Complete--Visible Toe Joints, Teeth Buds Form. Broad Range of More Forceful Movements.