Timelines
A pregnancy is divided into three phases, or trimesters. The first trimester is from conception to the end of week 13. The second trimester is from week 14 to the end of week 26. The third trimester is from week 27 to the end of the pregnancy.
The doctor will examine you and perform a pelvic exam. He or she may also perform blood tests, a urine test, and tests for sexually transmitted diseases (STDs), including a test for HIV, which is on the rise in teens. (Some STDs can cause serious medical problems in newborns, so it's important to get treatment to protect the baby.)
The doctor will explain the types of physical and emotional changes you can expect during pregnancy.
He or she will also teach you to how to Recognize the signs of possible problems during pregnancy (called complications). This is especially important because teens are more at risk for certain complications, such as anemia, high blood pressure, and delivering a baby earlier than usual (called premature delivery).
Your doctor will want you to start taking prenatal vitamins that contain folic acid, calcium, and iron as soon as possible.
The doctor may prescribe the vitamins or recommend a brand that you can buy over the counter. These vitamins and minerals help ensure the baby's and mother's health as well as prevent some types of birth defects.
Changes to Expect in Your Body
Pregnancy causes lots of physical changes in the body. Here are some common ones:
Breast Growth
An increase in breast size is one of the first signs of pregnancy, and the breasts may continue to grow throughout the pregnancy. You may go up several bra sizes during the course of your pregnancy.
Skin Changes
Don't be surprised if people tell you your skin is "glowing" when you are pregnant — pregnancy causes an increase in blood volume, which can make your cheeks a little pinker than usual. And hormonal changes increase oil gland secretion, which can give your skin a shinier appearance. Acne is also common during pregnancy for the same reason.
Linea Nigra
Also, moles or freckles that you had prior to pregnancy may become bigger and darker. Even the areola, the area around the nipples, becomes darker. Stretch marks are thin pink or purplish lines that can appear on your abdomen, breasts, or thighs.
Except for the darkening of the areola, which can last, these skin changes will usually disappear after you give birth.
Pregnancy Discomforts
Pregnancy can cause some uncomfortable side effects. These include:
nausea and vomiting (especially early in the pregnancy)
leg swelling
varicose veins in the legs and the area around the vaginal opening
hemorrhoids
heartburn and constipation
backache
fatigue
sleep loss
Things to Avoid
Smoking, drinking alcohol, and taking drugs when you are pregnant put you and your baby at risk for a number of serious problems
Alcohol
Doctors now believe that it's not safe to drink any amount of alcohol when you are pregnant. Drinking can harm a developing fetus, putting a baby at risk for birth defects and mental problems
Smoking
The risks of smoking during pregnancy include stillbirths (when a baby dies while inside the mother), low birth weight (which increases a baby's risk for health problems), prematurity (when babies are born earlier than 37 weeks), and sudden infant death syndrome (SIDS). SIDS is the sudden, unexplained death of an infant who is younger than 1 year old
Drugs
Using illegal drugs such as cocaine or marijuana during pregnancy can cause miscarriage, prematurity, and other medical problems. Babies can also be born addicted to certain drugs.
Ask your doctor for help if you are having trouble quitting smoking, drinking, or drugs. Check with your doctor before taking any medication while you are pregnant, including over-the-counter medications, herbal remedies and supplements, and vitamins
Taking Care of Yourself During Pregnancy
Eating
Many girls worry about how their bodies look and are afraid to gain weight during pregnancy. But now that you are eating for two, this is not a good time to cut calories or go on a diet. Both you and your baby need certain nutrients so the baby can grow properly.
Eating a variety of healthy foods, drinking plenty of water, and cutting back on high-fat junk foods will help you and your developing baby to be healthy.
Doctors generally recommend adding about 300 calories a day to your diet to provide adequate nourishment for the developing fetus.
You should gain about 25 to 35 pounds during pregnancy, most of this during the last 6 months — although how much a girl should gain depends on how much she weighed before the pregnancy. Your doctor will advise you based on your individual situation.
Eating additional fiber — 25 to 30 grams a day — and drinking plenty of water can help to prevent common problems such as constipation.
Good sources of fiber are Fresh Fruits and vegetables and breads, cereals, or muffins that have lots of whole grain in them.
You'll need to avoid eating or drinking certain things during pregnancy, such as:
certain types of fish, such as swordfish, canned tuna, and other fish that may be high in mercury (your doctor can help you decide which fish you can eat).
foods that contain raw eggs, such as mousse or Caesar salad
raw or undercooked meat and fish
processed meats, such as hot dogs and deli meats
soft, unpasteurized cheeses, such as feta, brie, blue, and goat cheese
unpasteurized milk, juice, or cider
It's also a good idea to limit artificial sweeteners, and drinks that contain caffeine and artificial sweeteners.
Exercise
Exercising during pregnancy is good for you as long as you are having an uncomplicated pregnancy and choose appropriate activities. Doctors generally recommend low-impact activities such as walking, swimming, and yoga. Contact sports and high-impact aerobic activities that pose a greater risk of injury should generally be avoided. Also, working at a job that involves heavy lifting is not recommended for women during pregnancy. Talk to your doctor if you have questions about whether particular types of exercise are safe for you and your baby.
