The first week of development, in the process of
The egg is ready for fertilization for 12 to 24 hours after the ovulation. If fertilization does not occur, the corpus luteum shrinks and degenerates. The uterine wall and the unfertilized egg along with some blood are shed out by the body as the menstrual discharge. If the sperm comes in contact with the egg, it penetrates and fertilizes the egg to form an embryo. This usually takes place in one of the fallopian tubes.
In a few days, the embryo is found to be in the blastocyst stage, which marks the beginning of the implantation process. In this process, the embryo attaches itself to the wall or the lining of the uterus. Implantation bleeding, a brown discharge, is observed in some females. The placenta starts to develop and the human chorionic gonadotropic hormone is released. Increased levels of this hormone in the urine are used for the detection of
Estrogen and progesterone are the two main hormones produce during ovulation. Estrogen thickens the uterine lining and increases the blood flow to the uterus and progesterone stimulates various secretions, which nourish the fertilized egg. The human body, with the help of hormones, tries its best to create a suitable environment for the development of the embryo so as to make the unborn baby’s journey a comfortable one.