When I first found out I was pregnant.
Many mothers are more curious.
How is the little life in the belly developing?
Is it beginning to take on a human form?
Do you have eyes and nose out?
Somewhat excited. I was a little worried.
So let's talk about it today.
Your baby's development during the first trimester.
And the various changes of the mother and the need to do the checks.
What is the first trimester?
Medically, the first trimester refers to the first day of the last menstrual period to the end of the 13th week of pregnancy.
At this stage,It is an important period for the implantation of the fertilized egg, the formation of cells, and various organsStimuli from diseases, drugs, exertion or other physicochemical factors at this timeFetal malformations and miscarriage may occurEspecially during the 5th and 10th weeks of pregnancy, it is necessary to pay attention to avoid the influence of adverse factors.
What do babies do in their wombs during the first trimester?
During the first trimester of pregnancy, the baby's growth and development in the mother's body is very fast. The first 8 weeks,A fertilized egg develops from a single cell into a 200 million cellsThis stage is called the embryo, and after 8 weeks it is called the fetus.
At 6 weeks of pregnancy, the spine and brain of the embryo begin to form, and the heart begins to beat. After 7 weeks, the limbs begin to form.
After 8 weeks, the fetus has eyes, but no face and external auditory canal;The fetus began to squirm, but the mother could not feel it.
At 12 weeks, the fetus is about 7 centimeters long and weighs 20 grams, revealing a humanoid shape with a larger head compared to the rest of the body. The fetal heartbeat can be heard with a Doppler stethoscope. The fundus can be felt through the abdomen above the pubic symphysis.
In the first trimester, there are various changes in the mother.
In the first trimester, mothers will have strong symptoms, and some mothers begin to have early pregnancy reactions, such as: fatigue, fatigue, drowsiness, loss of appetite, nausea, vomiting, etc.
The importance of prenatal examination for mothers in the first trimester.
The prenatal examination in the first trimester can understand the basic health status of the mother and determine whether the mother has underlying internal diseasesMonitor whether the fetal growth and development is normal and the placental function, and check whether the mother's gestational age is accurate.
What are the items for prenatal check-up in the first trimester?
Week: Early pregnancy test
The contents of the first trimester test are mainly progesterone, blood HCG and B ultrasound examination.
hcg:By measuring the HCG value in a woman's blood, it is possible to determine whether a woman is pregnant, and the value is dynamically observed. Blood HCG is more accurate and has less error than traditional urine HCG
Progesterone:After pregnancy, the amount of progesterone increases with the increasing gestational ageIt can assist in diagnosing threatened miscarriage, embryo termination and other conditions
B-ultrasound:Early ultrasonography can determine whether there is an intrauterine pregnancy, multiple pregnancy, and can also rule out molar pregnancy or intrauterine ectopic pregnancy(such as incisional pregnancy, cornual pregnancy, cervical pregnancy, myometrium pregnancy, etc.), and verify the gestational age.
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