Patient's question:
The period of 15-25 days after conception is the stage of embryonic nervous tissue development; the period of 20-40 days is the stage of cardiovascular development; and the period of 24-46 days is the stage of limb development. Is this correct?What exactly does "after conception" refer to? Does it mean after sexual intercourse?
Doctor's answer:
Hello, conception refers to the combination of an egg and sperm. Generally speaking, it is after sexual intercourse without contraception that pregnancy occurs. Typically, within 7 days after conception, the fertilized egg needs to implant. During the first three months of pregnancy, it is the period of nervous system development, so it is important to supplement folic acid to prevent neural tube defects. At the same time, the early stages of pregnancy are also the time for organ development. Generally speaking, the organs of the fetus begin to develop and form during the early stages of pregnancy. Therefore, prenatal care in the early stages of pregnancy is very important.