Pregnancy lasts about 40 weeks, counting from the first day of
your last normal period. The weeks are grouped into three
trimesters.These trimesters are different in physical changes to
both the mother and the unborn baby.
The first trimester takes place the first 14 weeks of
pregnancy. Although it may not seem like the pregnant woman is
experiencing any dramatic changes, many extraordinary things are
actually happening in her body during this time. The unborn baby
begins to develop all vital organs of the body and goes from a mass
of cells to an identifiable human fetus complete with fingers and
toes in just a few short months.
The second trimester lasts until the end of the seventh month
of pregnancy and is considered the easiest trimester for many
pregnant women. Many of the physical symptoms of the first
trimester ease up during this time.The unborn baby continues
growing and developing during this trimester, beginning to move,
kick, and open and close its eyes.
The third trimester lasts until childbirth and can be a
difficult stage for some women.During the third trimester, the
unborn baby continues to grow, adding layers of fat and finishing
its development.By now the organs and respiratory system of the
baby are fully matured.