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Uterus At 8 Week Pregnancy

The Uterus at 8 Weeks of Pregnancy

The uterus, also known as the womb, is a vital organ in the female reproductive system. It is responsible for nurturing and protecting a developing fetus during pregnancy. At 8 weeks of pregnancy, the uterus undergoes significant changes to accommodate the growing embryo.

Size and Shape

At 8 weeks of gestation, the uterus has approximately doubled in size since conception. It is now about the size of a small lemon or a golf ball. The shape of the uterus also changes from a pear-like shape to a more spherical form.


The uterus is located in the lower abdomen, just behind the bladder. At 8 weeks of pregnancy, it is still primarily located in the pelvis. However, as the pregnancy progresses, the uterus will gradually rise out of the pelvis and into the abdominal cavity.


The uterus is composed of three layers:

  • Endometrium: The innermost layer, which lines the uterine cavity. It is where the embryo implants and develops.
  • Myometrium: The middle layer, which is made up of smooth muscle fibers. These fibers contract to push the baby out during labor.
  • Serosa: The outermost layer, which covers the uterus and helps to keep it in place.

Blood Supply

The uterus receives a rich blood supply through the uterine arteries. These arteries branch out into smaller vessels that nourish the developing embryo and the uterine lining.

Hormonal Changes

During pregnancy, the uterus undergoes hormonal changes that prepare it for the developing fetus. These changes include:

  • Increased estrogen: Estrogen stimulates the growth of the uterus and the thickening of the uterine lining.
  • Increased progesterone: Progesterone relaxes the uterine muscles and prevents contractions.

Embryonic Development

At 8 weeks of pregnancy, the embryo is rapidly developing. It is now about the size of a kidney bean and has begun to take on a human form. The embryo’s major organs, such as the heart, brain, and lungs, are beginning to form.

Placental Development

The placenta is a vital organ that develops during pregnancy. It is responsible for exchanging nutrients and oxygen between the mother and the developing fetus. At 8 weeks of pregnancy, the placenta is still in its early stages of development. However, it is already beginning to function and provide nourishment to the embryo.

Cervical Changes

The cervix, which is the opening of the uterus, undergoes changes during pregnancy. At 8 weeks of gestation, the cervix is closed and sealed with a thick mucus plug. This plug helps to protect the developing fetus from infection.

Symptoms of Pregnancy at 8 Weeks

At 8 weeks of pregnancy, many women experience the following symptoms:

  • Nausea and vomiting (morning sickness)
  • Fatigue
  • Tender breasts
  • Frequent urination
  • Mood swings
  • Food cravings or aversions

Medical Care at 8 Weeks

At 8 weeks of pregnancy, it is important to schedule an appointment with a healthcare provider. This appointment will typically include:

  • A physical exam
  • A pelvic exam
  • An ultrasound to confirm the pregnancy and check the development of the embryo
  • Blood tests to check hormone levels and rule out any potential health issues


At 8 weeks of pregnancy, the uterus undergoes significant changes to accommodate the growing embryo. These changes include an increase in size, a change in shape, and hormonal adaptations. The uterus is also responsible for providing nourishment to the developing fetus and protecting it from infection. Regular medical care is essential to ensure the health of both the mother and the baby during pregnancy.

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