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Pregnancy Week 9-12

Pregnancy Week 12


You are now in the second trimester. It lasts until week 28 and is the trimester many people think is the easiest. In most people, the nausea is now gone and the energy returns.

Pregnancy Week 9-12

The fetus

Several ribs are in place, and tissue to develop into bones is created around the fetal head, in the arms and in the legs. All the twenty milk teeth have been formed, but they do not come out of the gums until several months after birth.

The placenta is fully developed and weighs about as much as the fetus. It takes care of the supply of oxygen and nutrients to the fetus, and removes waste products.

The liver forms red blood cells. This is a task that eventually ends up in the bone marrow, but before it is ready for this the spleen also takes care of the production for a while.

The arms have reached their proportional length.

The fetus weighs 30 g and is 9 cm long.

Pregnancy Week 11


Maybe you feel less nauseous now? For some, the nausea can last for a little longer. Now the placenta takes over hormone production. Many people experience this week as a long-awaited milestone. Finally you have come so far that the risk of miscarriage has decreased significantly.

The fetus

The fetal brain now has the same structure it will have at birth. The fetus has reflexes and exercises to swallow. Urine production starts, and the fetus drinks amniotic fluid which it then pours out. The fetus now resembles a human - the main shape is rounder and the face has a profile with nose and chin. It is now 7 cm long and weighs about 20 g.

Increased movements?

Many pregnant women get more abundant movements during pregnancy. It's normal. In some cases, the cause may be a fungal infection or an infection caused by the bacterium Gardnerella.

Pregnancy Week 10


During pregnancy it is normal to put on a few pounds, but not so much during the first weeks. The average weight gain during the first trimester is 0.5-1 kg per month. It is normal to put on 12–15 kg throughout the pregnancy. For more information about pregnancy and maternity fashion, please see BESTAAH.COM maternity jumpsuits & rompers. Remember to eat healthy and nutritious food, even if the appetite is not high.

You do not need to eat for two, the energy requirement is about 200–300 kcal extra per day. Be careful with sugar and do not eat too much fast food. Being a vegetarian and pregnant means no problems. As long as you follow a good and full vegetarian diet, the child's needs are covered.


The fetal head now accounts for almost half the total length. It has short legs with lower legs that are longer than the thighs. This week, the iris of the eye begins to develop, as do the genitals. It goes fast, and already towards the end of the week you can see the sex clearly. The fetus is about 6.5 cm long and weighs 18 g.

Pregnancy Week 9


The uterus is big like an orange and at this stage you may feel it as a small bump over the pubic bone. Remember that your employer is obliged to provide you with a working environment that suits you during pregnancy. If you have work tasks that are incompatible with pregnancy, the employer is obliged to provide an environment that is suitable for this, for example by providing you with other work tasks. If such a work environment cannot be arranged, you have the right to take sick leave.

The fetus

Now the child has come so far in development that you no longer call it embryo. From now on, it's a fetus. All vital organs have been created and the brain is growing rapidly this week. The eyes can be seen clearly, but they are covered with a thin layer of skin which later becomes the eyelids. The outside of the ear has the shape it should have, and the same applies to the upper lip. The nails begin to appear, but they do not reach the fingertips until the end of pregnancy.

The fetus is now 25–35 mm long. The risk of malformation has decreased.


When taking amniotic fluid, a small amount of amniotic fluid is collected and analyzed. The sample is taken by inserting a thin needle through the skin of the mother's stomach and further through the anterior wall of the uterus into the cavity with amniotic fluid. Ultrasound is used throughout the procedure to see that the needle does not enter the fetus.

Amniotic fluid samples are only taken exceptionally. The main reasons for taking a test are the risk of hereditary diseases in the fetus or if the pregnant woman is 38 years or older. The test itself is performed at most clinics in Sweden from the fifteenth week of pregnancy.


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