1, early pregnancy

The fetus is still small and the uterus is still in the pelvic cavity. As long as there is no heavy pressure on the abdomen, you can sleep at will, lie on your side, lie flat, lie prone, and so on for comfort. However, with the gradual enlargement of the abdomen, if you have abdominal discomfort in the early pregnancy, threatened abortion, or getting closer to the second trimester of pregnancy, try to reduce the posture of sleeping on your stomach.

2, the second trimester of pregnancy

No longer lying on your back, mainly lying on your side, alternating left and right, reducing lying posture. Near the third trimester of pregnancy, it is mainly in the left lateral position. Since the second trimester of pregnancy, the fetus and baby have developed rapidly and the uterus has further enlarged. If you continue to lie flat, the abdominal pressure will be too high, which will compress the aorta and inferior vena cava of the pregnant woman's abdomen, and then affect the blood circulation of the lower limbs and the blood return flow of the heart, which will lead to palpitation, fatigue, dyspnea and edema of the lower limbs of the pregnant woman, and may also lead to insufficient blood supply to the placenta and hypoxia of the fetus. If we mainly lie on our side, we can reduce this situation. It is relatively comfortable to alternate left and right sides, but near the third trimester, we still sleep in the left lateral position.

3. Late pregnancy

The stomach in the third trimester of pregnancy is very big. You must pay attention to your sleeping position at this time. During the whole pregnancy, most pregnant women will gain more than 20 kilograms, and their stomachs account for a large proportion. At this time, it is best to sleep on your side, because the uterus is very big. If they lie on their back, it is easy to compress the inferior vena cava, and the final result will be that the blood sent back to the heart will be reduced, resulting in discomfort for pregnant women.

Why does the doctor suggest sleeping on the left side in the third trimester?

In the third trimester of pregnancy, the fetus is basically fully developed, and the uterus of pregnant women also increases to the maximum. We know that the enlarged uterus will rotate to the right in the third trimester, but the right rotation of the uterus will affect the blood perfusion of the uterus. When the uterus rotates excessively to the right, the uterine blood vessels will also be twisted and cannot be directly connected as before, thus affecting the blood circulation speed. Therefore, doctors suggest sleeping on the left side, which can correct the right hand rotation of the uterus, improve the blood perfusion of the uterus, ensure the blood supply and oxygen supply of the fetus, and avoid the danger to the fetus and the baby, which is beneficial to both the fetus and the baby.