When a woman has pre-existing hypertension or develops hypertension before the 20th week of pregnancy, this is called chronic hypertension.

Fetal movement counting is a way to check the health of a woman’s unborn baby (fetus). It’s often called kick counting. It’s done by counting the number of kicks you feel from your baby in the womb in a certain time period.

Learning to breastfeed effectively is a process that may take days or weeks for premature and many other high-risk babies. But you and your baby can become a breastfeeding team if you are patient and persistent.

"Fresh breastmilk" contains the most active anti-infective properties. Refrigerated breastmilk has fewer anti-infective properties than fresh milk and frozen breastmilk has the least.

Neurocutaneous syndromes are disorders that affect the brain, spinal cord, organs, skin, and bones. The diseases are lifelong conditions that can cause tumors to grow in these areas. They can also cause other problems, such as hearing loss, seizures, and developmental problems.

Bleeding can happen at any time during pregnancy. Placenta previa can cause bleeding late in pregnancy. This means after about 20 weeks.

A head injury can be as mild as a bump, bruise (contusion), or cut on the head. Or it can be a concussion, a deep cut or open wound, broken skull bones, internal bleeding, or damage to the brain. Head injuries are one of the most common causes of disability and death in children.

Anemia is when your blood has too few red blood cells. Having too few red blood cells makes it harder for your blood to carry oxygen or iron. This can affect how cells work in nerves and muscles. During pregnancy, your baby also needs your blood.

Alpha-fetoprotein screening is a blood test that measures the level of AFP in the mother's blood. Abnormal levels may indicate certain problems with the fetus.

A headache is pain or discomfort in one or more areas of the head or face. Headaches can happen once in a while. Or they may happen often.