Fetal Development Week Five

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Fetal Development Week FiveVideo Description:Welcome to week five of pregnancy! Your baby has grown from the size of a poppy seed to the size of a sesame seed. In week five, your baby's heart starts to beat, although you won't be able to detect it until next week. Watch this week's pregnancy vide Transcript: If you were to see your little one this week, you might think you were growing a tadpole, not a baby, in there!  Don’t worry though. It’s normal for your embryo to look more like a fish than a human this week. In fact, where before your embryo was a mass of cells, that tadpole form is your little one’s first actual shape. And speaking of little, by now, the embryo is about the size of a sesame seed. But don’t let a small stature fool you! Your embryo has officially developed three layers. The outermost, the ectoderm, is forming the beginnings of a neural tube, which will become your baby’s brain, spinal cord, nerves, and backbone. The middle layer, or mesoderm, is busy developing a heart and circulatory system. That little heart will divide into chambers and even begin to beat and pump blood this week. Meanwhile, your embryo’s inner layer, called the endoderm, will eventually house organs like lungs and intestines. In addition, your baby’s placenta will also begin to develop now. And it is through the placenta, and fingerlike structures called villi, that your embryo will receive nourishment during your pregnancy. For more on your little one’s development, check back in your sixth week!  Category:Fetal Development/Month 2 Tags:5 weeks pregnant, five weeks pregnant, fetus at 5 weeks, fetus at five weeks, fetal development week 5, fetal development week five, week 5 of pregnancy, week five of pregnancy, pregnancy month 2, pregnancy month two, pregnancy video, pregnancy week by week, pregnancy by week, week by week, fetal development, fetal development video, baby development, embryo, placenta, baby heart, ectoderm, mesoderm, endoderm
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