How many days does it take for a fertilized egg to land

summary

My brother-in-law and sister want to have a baby. The doctor said that the fertilized egg is about to be implanted during this period of time. The doctor also said that we must pay attention to our body when we are in bed, and someone should take good care of my sister. My sister still feels the pain of needle pricking in the uterus during this period of time. So, how many days does it take for a fertilized egg to land?

How many days does it take for a fertilized egg to land

First: in a week, eight days after ovulation and implantation, you may have a slight pink or brown stain, and cramps may also come with it. Originally in the physiological period, there may be some punctate bleeding, but this is not the real physiological period. This is the result of the implantation of the fertilized egg in the endometrium.

Second: sperm into the vagina, can survive 2-3 days, during if you encounter ovulation, will be pregnant. The life span of the egg is about 2-3 days, while the sperm runs from vagina to fallopian tube for one day, and it takes two days for the fertilized egg to be implanted.

Third: so the time of conception after sex should be 2 + 1 = 3 days 2. Only after the successful implantation of the pregnant egg in the uterus can it be said to be pregnant. On the fourth day, the physiological reaction of pregnancy was just at the beginning, the enzyme system of pregnancy had not been activated, the metabolites had not been accumulated, and the sensitivity of the test paper could not reach the effect of clear discrimination. 3。 Test paper can be used to judge after 3 weeks.

Fourth: sperm and egg cells meet to form a fertilized egg. This is the process of fertilization. Fertilization takes about 24 hours. On the 3rd day after fertilization, it splits into a solid cell mass composed of 16 cells, which is called morula or early blastocyst. On the 4th day after fertilization, the early blastocysts entered the uterine cavity and continued to divide into late blastocysts.

Fifth: in theory, early pregnancy can be detected on the 9th and 10th day after fertilization, but in practice, it is still too early to detect. Generally, it can be detected with test paper after 2 weeks of fertilization. Generally, the small gestational sac can be seen by B-ultrasound 3 weeks after fertilization.

Sixth: the fertilized egg gradually moves into the uterine cavity and begins to prepare for implantation. It takes about 7-8 days from fertilization to the beginning of implantation, and it generally takes 11-12 days after fertilization to the end of implantation. Then it gradually develops into the embryo and the appendages that establish the relationship with the mother placenta, fetal membrane, umbilical cord and amniotic fluid.

matters needing attention

Do not take any medicine during the implantation of fertilized eggs, which may lead to fetal malformation. Therefore, if there is discomfort during implantation, we should go to the hospital immediately to find out the cause.