How Does a Twin Pregnancy Differ from a Single-Child Pregnancy?

Early Symptoms of Twins

• The first signs of a twin pregnancy may occur as early as the first trimester. If you̵7;ve ever been pregnant before, you may notice more severe body changes. Rapid weight gain in the first trimester is unusual and could be an indication of twins. Some women experience severe nausea and vomiting or find their breasts are extremely tender, much more so than in a single pregnancy. In a first pregnancy, a woman who is carrying twins might not realize her symptoms are more severe because she has no basis for comparison, but an ultrasound or lab tests can confirm the double pregnancy.

Potential for Complications

• A twin pregnancy can increase the risk of complications, according to the OWH. Twins are more likely to be born premature and weigh less than the average full-term baby. Women who are carrying twins are more likely to develop preeclampsia, a condition in which the mother develops high blood pressure. Gestational diabetes -- a metabolic problem similar to regular diabetes -- is also more likely in a twin pregnancy. Twins may need to be delivered by cesarean section rather than vaginally. Although it's rare, Mayo Clinic notes that twins sometimes share body parts, which can increase the risk of complications.

Nutrition Really Matters

• When carrying twins, you̵7;ll need more of several essential nutrients, such as folic acid, calcium, iron and protein, to make sure you and the babies stay healthy. You can and should gain weight, which means you need approximately 600 extra calories every day, according to Mayo Clinic. Generally, a woman who is carrying twins should gain between 37 and 54 pounds if she started her pregnancy at a healthy weight. You may need more frequent checkups and may also need to limit some of your activities if your doctor feels it̵7;s necessary.

Double the Money

• A twin pregnancy often means increased expenses. You may have copays or bills for more frequent doctor visits, and your doctor may recommend some extra lab tests to confirm the pregnancy. Your doctor may also recommend you see a specialist called a perinatologist to evaluate you for complications. Some women carrying twins need to curtail their activities or may even need to be on bed rest most of the time and are unable to work. You̵7;ll also need more clothes, diapers, and various items such as cribs or car seats for your two bundles of joy.