First Trimester
What 's happening to My Body?
Month One
During the first month, you may not even know you’re pregnant. It’s not until you miss your first period that you begin to suspect. You may feel tired, your breasts may be tender, and you may urinate more frequently.
Month Two
During the second month, your uterus will begin to expand. If this is your first pregnancy, the uterus will be about the size of a tennis ball. With subsequent pregnancies, your uterus will become larger earlier into your pregnancy. Some women experience occasional nausea or morning sickness during a month or two and may respond with stronger emotions than usual. Pregnancy hormones may cause mood swings. You may feel very tired this month and next, but this will pass by the beginning of the second trimester.
Month Three
During the third month. you will begin to settle into your pregnancy. Later this month you will begin to feel less tired because your heart will be better adjusted to pumping more blood. Your uterus will be about the size of a grapefruit when you touch your abdomen. You will begin to gain weight and your clothes may begin getting tight. By the end of the third month most of the body organs have formed and the risk of miscarriage is greatly decreased
What's happening t o My Baby?
Month One
During the first month, your baby is a microscopic fertilized egg that is dividing again and again, forming a ball of cells with separate layers that will grow into your baby 's body. A yolk sac nourishes your baby until all major organs and placenta have formed. At the end of one month, your baby will be about the size of a small pea and will weigh less than one ounce.
Month Two
The Central Nervous System and all the body systems of your baby start to form at 2 weeks but will take months to fully develop. From now until the twelfth week the baby is susceptible to birth defects. The controlled environment of the amniotic fluid surrounds the baby by six week s. Your baby’s face, eyes, ears and mouth are also forming during the second month and brain cells are growing. By the end of the second month, the placenta begins to grow. The baby, now officially called a fetus, is about one inch long and still weighs less than an ounce.
Month Three
The baby now has teeth buds and the soft cartilage of the skeleton has begun to turn into bone. The nose, eyelids, eyebrows, eyelashes, nails and skin are formed. By the third month, the whole body of your baby is cove red by a downy hair called lanugo. Your baby can now roll over in the amniotic fluid, open and close her mouth, swallow, make a fist, smile and squint. The heartbeat of your baby is growing stronger. By the end of the 12th week, the external genital organs of your baby are formed although it is too early to see with ultrasound. The baby has finally reached 1 ounce in weight and is now about the size of a walnut.
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- Courtney Lawson