Week 6 of Pregnancy - FamilyEducation

Week 6 of Pregnancy

First Trimester

Your 6th Week

This week you may notice the first symptoms of pregnancy-if not, don't worry.
6 week embryo in uterus
Embryo at 6 weeks
9. Small pits on either side of the baby's head represent the first signs of the developing of eyes.
10. The embryo measures 0.15 in (4 mm) from crown to rump.
1. These pharyngeal arches will develop into various structures in the head and neck, including the lower jaw and larynx.
2. Your baby's heart is making its first fluttering beats.
3. Tiny buds that will grow into arms and legs have started to sprout.
4. A curved tail-like extension has developed.
5. The umbilical cord contains blood vessels to and from the developing placenta, but they do not yet supply all of your baby's nutrients.
6. Chorionic villi form more branches as the placenta continues to develop.
7. The baby's head folds forward over the body.
8. The yolk sac still provides the majority of your baby's nourishment.
Small pits on either side of the baby's head represent the first signs of the developing eyes.The embryo measures 0.15 inThese pharyngeal arches will develop into various structures in the head and neckYour baby's heart is making its first fluttering beats.Tiny buds that will grow into arms and legs have started to sprout.A curved tail-like extension has developed.The umbilical cord contains blood vessels to and from the developing placentaChorionic villi form more branches as the placenta continues to develop.The baby's head folds forward over the body.The yolk sac still provides the majority of your baby's nourishment.
Not all women start to feel pregnant this early on. Some experience a twinge of nausea or breast tenderness, while others notice no changes. Of course, it's natural to long for "proof" that your pregnancy is progressing, even if that happens to be morning sickness. But a lack of symptoms doesn't mean something is wrong, it's all really happening and your baby is going through some critical stages of development.

You are 5 Weeks and 1 Day Pregnant

Your baby todayThe embryo now has 14 somites-the building blocks of your baby's muscular system. The first nine pairs are shown here. The upper part of the image shows the open end of the neural tube, which, along with the opening at the base of the spine, has closed. read more

You are 5 Weeks and 2 Days Pregnant

Your baby todayThe center of this image shows the baby's developing heart (darker gray), a very primitive structure at this stage. The baby's head is to the right of the image. The embryo is almost completely transparent. read more

You are 5 Weeks and 3 Days Pregnant

Your baby todayA front view of the embryo: the head region is bent downward so that the central nervous system can be seen. The tubelike structure in the head region is the developing spinal cord. The tail of the embryo is curving upward. read more

You are 5 Weeks and 4 Days Pregnant

Your baby todayThis image shows just how curled up the embryo is at this stage. The head end of the embryo is on the right. The embryo now has 22 pairs of somites (building blocks of the musculoskeletal system) running along the back. read more

You are 5 Weeks and 5 Days Pregnant

Your baby todayThis is a view of the right side of an embryo with the fronds of the chorionic villi in the background. The curled shape of the embryo is clearly demonstrated. The umbilical cord attachment to the early placenta can just be seen. read more

You are 5 Weeks and 6 Days Pregnant

Your baby todayDevelopment in the upper body usually precedes that in the lower body-this image shows the bulge containing the heart and liver, and the very earliest sign of development of the upper limb buds, but as yet there is no sign of the lower limb buds. read more

You are 6 Weeks Exactly Pregnant

Your baby todayHere the back of the embryo can be seen lying over the yolk sac. The opening overlying the developing brain has now closed (left side of image) and this will be followed two days later by closure of the opening at the base of the spine (out of view). read more