13 Weeks Pregnancy

This is the last week of your first trimester and your baby weighs 14 to 20 grams. The crown-to-rump length of your growing baby is 2.6 to 3.1 inches. Your baby is now about the size of a peach. Fetal growth is amazing from now through about the 24th week of pregnancy.


A 13 week old fetus by SONOReal 3D ultrasound imaging

At this point of your pregnancy, there is a steady flow of pregnancy hormones in your bloodstream. Your body will adjust to the changes and morning sickness might stop and other early symptoms will begin to ease. Because the second trimester is approaching, feelings of anxiety or nervousness may also diminish. You have probably gained some weight by now. You are losing your waist and your clothing is probably fitting snugly.

There is a milky membrane that surrounds your baby. It is pierced by the umbilical cord and is made up of two layers, which are fused together. Your placenta provides most of the nutrients and oxygen that your baby needs. By this week, the placenta is well formed and ready to take over hormone manufacture from your ovaries. The placenta will produce progesterone and estriol. These hormones will be crucial in the maintenance of your pregnancy. Tissue that will form your baby's bones is being laid down, especially around the head and limbs. The nose and chin are becoming more prominent. Your baby's eyelids meet and fuse together and they will not open again for nearly four months. The eyes started out on the side of your baby's head and they are now moving closer together on the face. The ears come to lie in their normal position on the sides of the head. If examined outside of the womb, you will be able to distinguish male from female at this time.

The sockets for all twenty teeth are formed in the gums, and vocal cords are beginning to form.

from http://www.i-am-pregnant.com

Kehamilan 13 Minggu

Kehamilan di minggu 13 bunda mungkin akan merasakan nyeri di ulu hati, hal ini bisa terjadi terutama pada kehamilan pertama. Rasa nyeri di ulu hati ini dapat disebabkan karena adanya perubahan hormon progesteron ataupun adanya perubahan secara fisik dari tubuh bunda sendiri, yaitu dari membesarnya rahim bunda hingga menekan perut ke arah atas dan menimbulkan peningkatan asam ke esophagus.

Rasa nyeri di ulu hati dapat bunda diminimalisasi dengan mengurangi makanan yang berminyak, makan yang terlalu banyak, mengatur pola makan sehari 6 kali dengan porsi yang sedikit daripada makan 3 kali sehari dengan porsi yang besar, menghindari memakai pakaian yang terlalu ketat.

Tangan mungil bayi bunda sudah mulai berfungsi dan sudah mulai bisa menaruh jempol-nya di mulutnya tetapi belum dapat menghisapnya karena otot jaringan untuk menghisap belum berfungsi. Bunda tidak perlu takut bayi bunda akan kelaparan dan tidak ada warung karena di minggu ke 13 ini bayi bunda sudah dapat menyerap makanan dan mendapatkan oksigen melalui plasenta. Si kecil sudah mulai bisa menundukan kepala karena lehernya semakin panjang.

Ukuran rata-rata bayi di usia kehamilan minggu ke 13 sudah seberat 23-24 gram dengan tinggi 7,4-7,5 cm.

Dari http://infobunda.com/