How long is the pregnancy?

How long is the pregnancy?

In daily life, many friends who are preparing to become parents find it difficult to detect the pregnancy period because each person's pregnancy characteristics are different and symptoms cannot be judged. So some friends will ask, at what time of pregnancy is it best to do an ultrasound? Next I will introduce it to you.

Ultrasound examination can only see the gestational sac after 5 weeks of pregnancy, and the detection rate of the gestational sac reaches 100% at 6 weeks of pregnancy. The embryo can be seen at 6-7 weeks of pregnancy. At 49 days of pregnancy, when the diameter of the embryo is 2mm, the primitive heart tube beating can be seen. At 8 weeks of pregnancy, the human shape begins to take shape.

All organs are formed at the 14th week, hair begins to appear at the 15th week, and the uterus is about 16CM at the 16th week.

At the end of the 17th week, the baby's movements are restricted and fetal movements occur. The second scan (to determine gender) is done at the end of week 21.

The gender will be known at the end of the 22nd week.

If you do an ultrasound too early, it will not be easy to see the shadow of the gestational sac because it is too small. . Not every doctor can make an accurate diagnosis, and it depends on the experience of the person doing the imaging. The more they do, the better.

Ideally, it is easy to see at 8-10 weeks of pregnancy. And if you do B-ultrasound too early, it will theoretically shake the fragile and newly formed embryo, which is not conducive to embryonic development. It is best to avoid doing B-ultrasound too early or too many times.

Regarding how long to wait before doing B-ultrasound during pregnancy, first of all, B-ultrasound can be used to detect whether pregnancy has occurred at any time. You should live a normal life. I would like to urge all friends not to take any contraceptives during pregnancy and to maintain your health.

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