Before you even know you are pregnant, the yolk sac has already formed and giving your growing little bean the nourishment it needs. This is only a temporary source of nourishment until the placenta takes over. The sac of pregnancy on ultrasound is usually the first sign that can confirm an actual pregnancy. You may have also heard this referred to as the “gestational sac” and it shows up if you have a very early ultrasound. [ 1,099 more word ] lace decorated items of the long garments

http://health100net.com/sac-of-pregnancy-on-ultrasound-2/

Sac of Pregnancy on Ultrasound Before you even know you are pregnant, the yolk sac has already formed and giving your growing little bean the nourishment it needs. This is only a temporary source of nourishment until the placent…health100net.com