embryo The first three months of pregnancy are the first trimester
The fetus
The germinal stage is the first stage of prenatal development that begins at fertilization and lasts for about two weeks. During this stage, the zygote undergoes rapid cell division and travels down the fallopian tube to the uterus, where it implants in the uterine lining. The germinal stage ends with the formation of the blastocyst, which is the early stage of embryonic development.
In general, pregnancy in humans is divided into three trimesters - the first three months, the second three months and the final three months. This also roughly corresponds to stages in fetal development - cellular division and basic morphology, organ development and refinement, and overall fetal growth.
During the first two months of pregnancy the unborn child is known as an embryo.
It is a rare condition, but a woman can have two uterus. The reason for the development of double uterus is still unknown. Two uteri can cause severe pain and excessive bleeding during menstruation.
If teratogens are introduced during the germinal period of development (first two weeks after conception), it is most likely that the pregnancy will not continue, resulting in a miscarriage. This is because exposure to teratogens during this time can disrupt the normal development of the embryo and prevent it from implanting properly in the uterus.
During the first two months of pregnancy the unborn child is known as an embryo.
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An infant.
A cow's uterus is an irregular shape, but it certainly does not look like a woman's uterus, which is triangle-shaped. A cow's uterus is divided into two "horns" which divide out in a V-shape if looking at the uterus from above.
The oviducts connect the ovaries to the uterus in the female reproductive system. They serve as a conduit for the egg to travel from the ovary to the uterus, where it may be fertilized by sperm.