The time of fetal implantation is not fixed, it varies from person to person, some fetuses will be implanted at 36 weeks earlier, but some will be implanted only at 38 weeks, so it depends on the specific situation. Most of them will be in the pelvis at 36-37 weeks of pregnancy. After the fetus is in the pelvis, pregnant women can have the following symptoms: 1st, after the fetus is in the pelvis, pregnant women will find that the shape of the stomach changes and find that the stomach is falling down; 2nd, after the fetus is in the pelvis, it will press on the bladder area of pregnant women and will have the symptom of frequent urination; 3rd, after the fetus is in the pelvis, it will no longer press on the heart and lungs of pregnant women. The third is that the fetus is no longer pressing on the heart and lungs of the pregnant woman, so it feels smoother to breathe, and the appetite will become better.