Changes of the uterus during pregnancy from 1 to 9 months

We all know that when a woman is not pregnant, her uterus is only the size of a "pear". However, because pregnancy requires the creation of a fetus, as the pregnancy progresses day by day, the uterus will also grow day by day, from the initial size of a fist to the size of a basketball. While we lament the difficulties of pregnancy, we are also full of awe for the creation of life.

Uterine changes during pregnancy from 1 to 9 months

First month of pregnancy

The uterus of a pregnant woman basically does not have any major changes in shape. From the beginning of embryo implantation, the endometrium of the uterus no longer falls off, and the pregnant woman's menstrual cycle will be stopped. At this time, the fetus is still in the stage of sperm and egg combination and division. The fetus in the first month is only called the fetal sac or gestational sac, and the size of the uterus basically does not change.

The second month of pregnancy has just begun

The gestational sac has already slowly divided, and different cells have differentiated into different organs of the fetus. The uterus has only slightly enlarged this month, and pregnant women can hardly feel it. However, with the effects of hormones such as estrogen and hCG, pregnant women may experience severe morning sickness. At this time, they should try to eat small meals frequently to prevent the body from lacking vitamin A.

The third month of pregnancy is a very important month

The gestational sac has basically split to reveal the prototype of the fetus. The shape of the fetus can be seen under B-ultrasound, but its volume is still very small. The pregnant woman's uterus will be slightly enlarged. At the same time, the amniotic fluid and fetal membrane of the pregnant woman have appeared, and the embryo has also adhered to the uterine cavity, strengthening the nutrient transport between the fetus and the pregnant woman.

The fourth month of pregnancy has just begun

Many pregnant women have already started to show their "belly". As the uterus gradually expands, a part of the pregnant woman's abdomen can be seen to be obviously bulging. The size of the uterus increases with the growth of the fetus, and the size may have reached more than twice the original size. And as the fetus's bones grow, many pregnant women will experience symptoms of calcium deficiency such as toothache and leg pain.

Fifth month of pregnancy

As the fetus grows further, its bones grow very rapidly. The fetus's head also grows larger due to growth and development, and the term "fetal biparietal diameter" that pregnant mothers are particularly concerned about appears. The uterus will expand faster than in previous months, and the pregnant woman's abdomen will gradually occupy less space due to the expansion of the uterus.

Sixth month of pregnancy

As the baby grows stronger, the shape of the uterus will become larger, and the endometrium will be pushed thinner. The movement of the fetus can be obviously reflected in the pregnant woman's abdomen. This month's uterus is close to a small watermelon, and the weight of the fetus can exceed 1 kg. The uterus has begun to become relatively tight.

Seventh month of pregnancy

Pregnant women have entered the late stage of pregnancy, and the various organs of the fetus have basically grown and developed. Starting from this month, the fetus will grow fleshy rapidly, so the uterus will further expand, and the amniotic fluid of pregnant women will become less and less as the fetus grows. Pregnant mothers should pay attention to drinking more water to prevent the fetus from hypoxia in the uterus!

The eighth month of pregnancy has just begun

The fetal position has basically appeared, and the embryo has begun to mature gradually. The pregnant woman's uterus will also be under greater pressure. During this stage, the pregnant woman's belly must be protected, and some dangerous postures should be avoided. At the same time, avoid irritating the uterus to prevent uterine contraction and premature delivery.

Ninth month of pregnancy

The size of the uterus is basically close to its original shape. Some pregnant women's uterus can be as big as a basketball, and some as big as a watermelon. In fact, every pregnant woman is different. It is closely related to the growth and development of the fetus and the nutritional absorption of the pregnant woman. At the beginning of this month, pregnant women need to consider where to give birth and what method of delivery to choose.

The tenth month of pregnancy is also the month before the pregnant woman is about to give birth.

This month, the uterus will swell to a larger size. Many pregnant women will have their waist nerves compressed due to the enlarged uterus, resulting in severe back pain. In addition, the uterus will compress the bladder, and pregnant women will often have to run to the bathroom. A slight sneeze may cause urination, which is very embarrassing. However, as the pregnant woman begins to give birth, these symptoms will quickly disappear.