1. Reference for the change of gestational sac development size
Four weeks pregnant
Ultrasound shows no signs of pregnancy. The fetus is only 0.2 cm, and the amniotic cavity is just formed after the fertilized egg is implanted, and the volume is very small.
Five weeks pregnant
B-ultrasound showed small fetal sac, accounting for less than 65,438+0/4 of uterine cavity, or germ was visible. When the fetus grows to 0.4 cm and enters the embryonic stage, the amniotic cavity is enlarged, and the primitive cardiovascular system appears, which may be pulsating.
Six weeks pregnant
B-ultrasound can clearly see the fetal sac, and can see embryo bud and the fetal heartbeat. The fetus grows to 0.85 cm, and the fetal head, brain vesicles, frontal organs, breathing, digestion, nerves and other organs differentiate.
Seven weeks pregnant
B-ultrasound clearly shows the embryo bud and fetal heartbeat. The fetal sac accounts for about 65438 0/3 of the uterine cavity, and the fetus grows to 65438±0.33cm. This embryo has the shape of a human embryo, all parts are differentiated, limbs are separated, and all systems are further developed.
Eight weeks pregnant
B-ultrasound showed that fetal sac occupied about 1/2 of the official cavity, fetal morphology and fetal movement were clearly visible, and yolk sac could be seen. The fetus grows to 1.66 cm, and the fetal shape is fixed, which can be divided into fetal head, fetal body and fetal limb. The head of the fetus is bigger than the trunk.
Nine weeks pregnant
B-ultrasound showed that the fetal sac almost occupied the uterine cavity, the fetal contour was clearer, the placenta began to appear, the fetal length was 2. 15 cm, the fetal head was larger than the carcass, the performance of each part was clearer, the skull began to calcify and the placenta began to develop.
Pregnancy 10 week
B-ultrasound showed that the fetal sac began to disappear, and the crescent placenta was visible, and the fetus was moving in amniotic fluid. When the fetus grows to 2.83 cm, all fetal organs are formed, and the embryo placenta is formed.
Pregnancy 1 1 week
B-ultrasound showed that the fetal sac disappeared completely and the placenta was clearly visible. When the fetus grows to 3.62 cm, the fetal organs develop further and the placenta develops.
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1. If the development of embryos and fetuses is monitored by B-ultrasound, if there is no gestational sac at ≥6 weeks, or if there is a gestational sac but it is deformed and shriveled, if the gestational sac is ≥4cm but there is no embryo, and the head and arm length of the embryo is ≥ 1.5cm but there is no fetal heartbeat, it can be judged that the gestational sac develops slowly or the fetus develops abnormally. Generally, the latter three conditions can be diagnosed as fetal arrest.
2. In addition, the determination of blood β-hcG is also helpful for the diagnosis of fetal arrest. If ≥5 weeks, blood β-HCG
If the gestational sac development of pregnant women meets the above-mentioned delay, the following methods can be taken to remedy it.
Methods 1: Diet therapy
1, eat special milk powder for pregnant women to supplement nutrition.
2. Supplement folic acid to promote the growth and development of gestational sac cells.
3. Eat more vegetables, fruits, fresh fish, tender chicken, jujube, bean products, sesame seeds, walnuts and other foods, and the gestational sac will develop quickly and well.
Note: list of pregnancy taboos
1, avoid using the following seasonings.
Such as fennel, pepper, pepper, cinnamon, pepper, garlic and other spicy condiments.
2. Eat less hawthorn
Hawthorn can accelerate uterine contraction and lead to premature delivery, so it is best to "stay away from it".
3. don't take too much vitamin a.
It is easy to lead to premature delivery and fetal dysplasia, especially pig liver, which is extremely rich in vitamin A. Don't overeat.
4, avoid eating black fungus
Auricularia auricula has the function of promoting blood circulation and removing blood stasis, which is not conducive to the stability and growth of embryos.
5. Avoid eating apricots and almonds.
Apricots are sour, hot, and have the effect of slippery fetus. Pregnant women should not eat them.
6. Avoid eating coix seed and purslane.
Coix seed, namely Coix seed, has an exciting effect on uterine muscles, can promote uterine contraction, and may induce premature delivery. Portulaca oleracea is cold and greasy, which has obvious exciting effect on uterus and is easy to cause premature delivery.
7. Limit drinking caffeinated drinks.
Excessive caffeine intake will affect the growth of fetal bones, which may lead to deformity of fingers and toes, and increase the incidence of miscarriage, premature delivery and underweight infants.
8. Avoid foods high in sugar and fat.
Eating too many foods high in sugar and fat, such as soda, sugar and potato chips, will make pregnant women overweight, thus increasing the incidence of gestational diabetes and pregnancy-induced hypertension. In addition to increasing the risk of diabetes and hypertension in the future, dystocia will also occur.
9. Avoid drinking alcohol
Drinking too much wine will cause fetal malformation and affect fetal IQ and physiological development.
10, moldy and rotten food
Such as moldy grains, peanuts, vegetables left for too long, etc. Moldy food contains carcinogenic aflatoxin, which can lead to maternal liver lesions.
1 1, fried, fried and smoked food
Such as fried dough sticks and mutton skewers; This kind of high-temperature fried food often contains some carcinogens, which are toxic to the mother and embryo.
12, preserved food
Such as sausage, ham, bacon, pickled cabbage, etc. In the process of curing meat, more B vitamins are lost and the salt is too heavy, which increases the burden on mother's kidney.
13, fast food with more food additives.
Such as instant noodles and canned food. This kind of food contains more salt and monosodium glutamate, but less vitamins and minerals. It belongs to junk food, and regular consumption will lead to dehydration and headache.
Method 2: Symptomatic treatment
Gestational sac growth retardation may be caused by infection caused by some viruses in early pregnancy or stimulation by some equipment chemicals. At this time, pregnant women need to pay attention to whether there are these dangers around them and then discharge them.
Such as: the surrounding radiation is large, the air pollution is serious, it used to be a war zone, taking X-rays, taking certain medicines, and contacting cats and dogs.
Method 3: supplement progesterone
If there is no clear reason for gestational sac growth retardation, then progesterone hormone will be given to pregnant women to protect the fetus. Usually, this method works well, but pregnant women should pay attention to taking medicine or injecting medicine on time and in quantity according to the doctor's advice to protect the fetus. Don't stop taking medicine at will.
Attention should be paid to the slow development of gestational sac
1, air defense capsule
If the pregnant mother still has only the gestational sac more than 2 months after pregnancy, and the embryo heart is not seen, it may be that the gestational sac is empty and the embryo development has stopped. At this time, it is necessary to seek medical treatment in time for curettage.
Step 2 avoid miscarriage
The small gestational sac formed in early pregnancy should not only be stunted, but also avoid miscarriage. During this period, avoid carrying heavy objects or doing strenuous exercise, don't overwork, rest more, ensure adequate sleep and control sexual life.
Step 3 check in time
If pregnant women find signs of slow development of their gestational sac at an early stage, in addition to the above remedial measures, they need to check the development of gestational sac in their bellies at regular intervals, so as to take timely measures when there are problems.