growth and development: week 8

"by your 8th week of pregnancy, the crown-to-rump length of your baby is 0.56 to 0.8 inch. this is about the size of a pinto bean.

your baby is continuing to grow and to change rapidly during these early weeks. eyelid folds are forming on the face. the tip of the nose is present. ears are forming, internally and externally.

in the heart, the aortic and pulmonary valves are present and distinct. tubes leading from the throat to the functioning part of the lungs are branched, like the branches of a tree. the body's trunk area is getting longer and straightening out.

elbows are present, and the arms and legs extend forward. arms have grown longer. they bend at the elbows and curve slightly over the heart. the digital rays, which become fingers, are notched. toe rays are present on the feet."

--your pregnancy week by week