In the beginnings of a pregnancy the sperm fertilizes the ovum and it becomes a small mass of cells called a zygote. After about five days it develops into a grouping of cells called a blastocyst and becomes implanted in the uterine wall. It is in the first trimester that most of the major organ systems present themselves and the features are becoming recognizable as human. During the third and fourth weeks, the head undergoes a lot of development as the central nervous system begins to form, and the beginnings of eyes and ears are visible. By the end of the 10th week, the fetus’ eyes, ears, and extremities are completely formed. By the end of the 7th week, …show more content…
The lanugo hair will disappear now and the skin becomes less red and wrinkled. All of the baby’s organs have developed, the lungs continue to mature until the day of …show more content…
She may have shortness of breath due to the pressure put on her lungs, also it can lead to indigestion and heartburn. Strain is also put on the heart due to the increase in the volume of blood. Sleep can also be difficult. The weight gain continues in the third trimester, sometimes causing a disturbance in the woman’s sense of balance and an increase in lower back pain. Women typically gain 20 to 30 pounds during pregnancy, but they need to be careful because excessive weight gain can be a sign of gestational diabetes. It is at this point that you will want to prepare yourself for childbirth.
There are three stages to childbirth. The first stage is the early stage and it has three phases. The latent stage during which the contractions might be as much as 20 minutes apart and might even be mild or resemble menstrual pains. The active stage of labor your contractions will become more powerful and closer together. The transitional stage happens when the cervix is about 8 cm dilated and you may experience the urge to