16 Weeks Pregnant
Unborn baby at 16 weeks of pregnancy performed 14 weeks after fertilization, or 4 total lunar month.
Changes to the fetus
The size of the fetus at 16 weeks' gestation from crown to rump is 11 cm, weighs already 100 - 120 g
The lower torso and legs future baby continues to grow, the length of the legs has already exceeded the handle. Movement of the fetus becomes more diverse, it can keep the neck straight, turn your head in different directions.
In the "training mode" function, many organs of the digestive tract:
- Bile duct.
By the 16th week of pregnancy the fetus has formed a permanent part of the blood. The formation of blood cells prior to this date occurs in the liver, skin or the yolk sac, and 16 weeks of pregnancy hematopoiesis takes the red marrow of the fetus. It is located in the cancellous bone and is responsible for the formation of blood cells throughout life. Furthermore, in fetal serum were specific proteins that together with the antigens of erythrocytes formed blood group.
In erythrocytes (red blood cells) in the fetus 16 weeks of pregnancy, a so-called fetal hemoglobin. It differs from normal adult hemoglobin that binds better and more oxygen molecules, allowing fetal blood efficiently carry oxygen supply. After birth, the hemoglobin in the first months collapses, giving way to "adult" hemoglobin, the molecule that is synthesized first as the time in 16 weeks of pregnancy.
Holding ultrasound at 16 weeks of pregnancy to determine the sex of the baby, his external genitalia to this term is usually formed on the male or female type.
Isolation at 16 weeks of pregnancy hormones by the pituitary gland of the fetus more coordinated coordinated work of the internal organs and the nervous system. Actively grow and multiply nerve cells in the brain.
Changes in women at 16 weeks of pregnancy
The belly at 16 weeks of pregnancy continues to increase in circumference under his clothes no longer hide. Thin women gain weight is slightly larger than full, but the general rule for all - an increase in the rate should not exceed 1 - 1 5 kg per month for the whole period of pregnancy. Overall weight gain at week 16 of pregnancy is approximately 2 to 5 kg.
Normally, a woman should not experience any discomfort, so the pain at 16 weeks of pregnancy have a very strong concern. Combined with spotting 16 weeks of pregnancy may be a sign of a threat of interruption.
Due to the increase in body size, in particular, the growing belly, stretched skin in the thigh, chest, abdomen, which subjectively appears itching sensation in the area. Since the fibers of the connective tissue of the skin stretched, some pregnant women in these areas appear white or pink stretch marks - the narrow strip-stretching.
On nipples at 16 weeks of pregnancy may appear hillocks and on the chest mesh skin appear bluish veins.
At 16 weeks pregnant, many multiparous women first feel the stirring of their child in the stomach. They describe them as a gentle touch, a little awkward movement or tangible quiet gurgle. Women, who will give birth for the first time, to feel fetal movements until 20 weeks.
A survey of 16 weeks of pregnancy
During the planned visit to the obstetrician-gynecologist pregnant measuring blood pressure, weight, abdominal circumference and height of standing uterus. Before visiting a doctor the woman passes urine general analysis that already with his result to get an appointment.
Special tubes doctor listens to the heartbeat of the fetus. Ultrasound at 16 weeks of pregnancy is not routinely performed.
If a woman notices allocation at 16 weeks of pregnancy from the genital tract as a white curd, it is necessary to eliminate candidiasis, which often occurs during pregnancy. To confirm or refute the diagnosis can take a swab of the vaginal flora.