Three or four weeks of pregnancy symptoms?

summary

Once pregnant women enter the third week, this period is very important, because this period is to enter the ovulation period, pregnancy may occur, then after ovulation and fertilization process can be determined as pregnancy. Female friend must cause attention, so pregnant three or four weeks symptom? What is it!

Three or four weeks of pregnancy symptoms?

The amniotic cavity was formed just after the implantation of the fertilized egg. Today's fetus is very humble, about 0.2cm long, very small and very soft. The fetus, who has just been implanted in the womb, still does not look like a "human" in appearance. His head is as big as his body and looks like a fish with four gills and a long tail.

Now your baby is still an embryo made up of two layers of tissue, from which all his organs and body parts will develop. The first placental cells are implanted in the endometrium, creating space for fetal blood delivery. By the end of this week, the villi around the fetus began to proliferate rapidly, providing nutrients and oxygen and discharging wastes. The placenta began to develop gradually, providing nutrition and oxygen for the growth of the baby.

During this period, the amniotic fluid will play a protective role in the growth and development of the baby, and the yolk sac will produce red blood cells and transport nutrients for the fetus before the placenta functions. When the fetus is implanted in the womb, the size of the womb is about the size of an egg, which is no different from that before pregnancy. However, after the implantation of the fertilized egg, the endometrium will become softer and thicker. Only 7-10 days after the formation of the fertilized egg can it be said that it is pregnant.

matters needing attention

1. Supplement folic acid: folic acid can prevent the birth weight, premature delivery, cleft palate (cleft lip) and other congenital malformations. Now, you need to supplement more folic acid than ordinary people. You can eat more green vegetables. Supplement folic acid tablets for pregnant women is the most direct way to supplement folic acid. 2. Breast swelling and pain: due to hormone changes, blood flow increases and breast tissue changes. From now on, you will feel breast swelling, pain and tingling throughout the first trimester of pregnancy, which is stronger than the feeling of breast swelling and pain before menstruation. The best way to do this is to use a bra of good quality that will support your chest. 3. Threatened abortion: the whole early pregnancy for the fetus is a dangerous period, if you appear vaginal discharge blood clots or light gray tissue, then you should pay attention to, this is likely to be the symptoms of threatened abortion. Go to the hospital immediately and take care of the fetus according to the doctor's advice. However, you don't have to worry too much. Most expectant mothers can survive the first trimester of pregnancy safely. It's important to keep a good mood. 4. Pay attention to a balanced diet: at this time, you need a reasonable intake of a variety of nutrients, as well as some other essential trace elements. You should try to choose fresh natural green food, avoid or eat less food containing pigments, additives, preservatives, caffeine will have adverse effects on the fetus, you should drink less caffeinated drinks. 5. Calculate the expected date of birth: just found pregnant, you may most want to know when the baby will be born. As long as you write down the time of your last menstruation, you can know your due date: the month of the last menstruation date plus 9 or minus 3 is the number of due months, and the number of days plus 7 is the due date.