A twin pregnancy is usually confirmed during the second trimester. Ultrasound is the best way to determine if a woman is carrying more than one baby.
You may know of someone who was told early in pregnancy she was going to have twins. Then sometime later, one of the twins "disappeared." It happens sometimes. Early ultrasound exams revealed two babies; later ultrasounds of the same woman show one baby disappeared, but the other baby was OK. We believe one of the fetuses may die, then be absorbed in the mother's body. This is one reason many doctors prefer not to predict a twin birth before 10 weeks of pregnancy.
Protecting This Pregnancy
The possibility of problems increases slightly when a woman is carrying more than one baby. One of the most important things to remember with a multiple pregnancy is to take things more slowly, from the beginning of your pregnancy until delivery.
