Knowledge | 11 Things to Know About a Twin Pregnancy: Twice the Joy and Twice the Challenge
Being told that you are expecting twins can be an unforgettable moment of surprise and joy. It may soon be followed by uncertainty: How much more should I eat? Am I more likely to deliver prematurely? How many prenatal appointments will I need? Will I definitely need a cesarean section?
This article presents 11 facts about twin pregnancy, with guidance from maternal-fetal medicine specialists at Hackensack University Medical Center, the University of Texas Health Sciences Center, and other institutions.
1. The Chance of Conceiving Twins Naturally Increases After Age 30
Although fertility begins to decline after age 35, the natural likelihood of a multiple pregnancy increases. Dr. Abdulla Al-Khan, director of maternal-fetal medicine in New Jersey, explains, “After age 30, ovulation may become irregular, and two eggs may sometimes be released in one cycle, potentially resulting in twins.” Advanced maternal age therefore does not create only disadvantages.
2. Twin Pregnancy Requires More Folic Acid
Folic acid is essential for preventing neural tube defects such as spina bifida. Dr. Manju Monga, director of maternal-fetal medicine at the University of Texas Health Sciences Center in Houston, recommends, “For a singleton pregnancy, take 0.4mg daily; for twins, 1mg is recommended.” She is also a mother of twins.
3. Twin Pregnancy Means More Prenatal Appointments
People carrying twins should expect more frequent appointments. Dr. Monga says a singleton pregnancy usually requires one anatomy ultrasound and one fetal growth assessment, while twins need regular monitoring for differences in growth. Near the due date, clinicians may also perform fetal heart-rate monitoring or ultrasound twice weekly.
4. Early Pregnancy Symptoms May Be Stronger and Last Longer
Human chorionic gonadotropin (hCG) levels are higher in twin pregnancies and are one of the main contributors to morning sickness. Dr. Al-Khan says, “Most women carrying twins experience more severe nausea and vomiting in early pregnancy, although symptoms generally begin to improve around 12–14 weeks.”
Other conditions, including back pain, insomnia, acid reflux, anemia during pregnancy, and postpartum hemorrhage, are also more common in twin pregnancies.
5. Bleeding Is More Common Early in a Twin Pregnancy
Do not panic if you have light bleeding early in pregnancy. Dr. Al-Khan says, “The miscarriage rate is higher in multiple pregnancies, so light bleeding is more common in the first trimester.” Seek immediate medical care if bleeding is accompanied by significant abdominal pain, clots, or heavy blood loss.
6. Fetal Movement Does Not Begin Earlier
Many people assume they will feel twins move sooner, but fetal movement typically begins around 18–20 weeks, similar to a singleton pregnancy. In a first pregnancy, it may be mistaken for gastrointestinal movement.
7. Weight Gain Is Greater, but Should Still Be Managed
Twins mean two fetuses, two placentas, and more amniotic fluid, so greater weight gain is expected. Dr. Al-Khan recommends:
Women of normal weight should gain 37-54 pounds (about 16.8-24.5 kilograms);
Women who are overweight should gain 31-50 pounds;
Women with obesity should gain 25-42 pounds.
Dr. Monga adds, “We do not recommend that women carrying twins gain more than 40 pounds or less than 15 pounds.”
8. The Risk of Gestational Diabetes Is Higher
Dr. Monga notes that gestational diabetes is more common in twin pregnancies. Although twins are not necessarily large, gestational diabetes can increase the likelihood of cesarean delivery and the future risk of type 2 diabetes.
9. The Risk of Preeclampsia Is Higher
Preeclampsia is also more common in twin pregnancies. It is a pregnancy complication characterized mainly by high blood pressure, protein in the urine, and edema, and may progress to life-threatening eclampsia. Although the exact cause remains unclear, its higher incidence in multiple pregnancies is well established.
10. Preterm Birth Is More Likely, With 34 Weeks an Important Milestone
Most twins are born around 36-37 weeks, considerably earlier than singletons at about 40 weeks. Some are born before 34 weeks. Dr. Al-Khan says, “Although the risks of preterm birth after 34 weeks are manageable, premature infants may still have underdeveloped lungs, low birth weight, and other complications.”
Unfortunately, bed rest and medication do not effectively prevent preterm birth in multiple pregnancies. Clinicians generally monitor patients closely and intervene when necessary.
11. Cesarean Delivery Is More Common for Several Reasons
Women carrying twins are significantly more likely to have a cesarean delivery. Dr. Al-Khan explains that one fetus may be breech and that multiple births are more complex and require closer management of labor, leading clinicians to favor cesarean delivery for safety.
Knowledge | 11 Things to Know About a Twin Pregnancy: Twice the Joy and Twice the Challenge
Knowledge | 11 Things to Know About a Twin Pregnancy: Twice the Joy and Twice the Challenge
Being told that you are expecting twins can be an unforgettable moment of surprise and joy. It may soon be followed by uncertainty: How much more should I eat? Am I more likely to deliver prematurely? How many prenatal appointments will I need? Will I definitely need a cesarean section?
This article presents 11 facts about twin pregnancy, with guidance from maternal-fetal medicine specialists at Hackensack University Medical Center, the University of Texas Health Sciences Center, and other institutions.
1. The Chance of Conceiving Twins Naturally Increases After Age 30
Although fertility begins to decline after age 35, the natural likelihood of a multiple pregnancy increases. Dr. Abdulla Al-Khan, director of maternal-fetal medicine in New Jersey, explains, “After age 30, ovulation may become irregular, and two eggs may sometimes be released in one cycle, potentially resulting in twins.” Advanced maternal age therefore does not create only disadvantages.
2. Twin Pregnancy Requires More Folic Acid
Folic acid is essential for preventing neural tube defects such as spina bifida. Dr. Manju Monga, director of maternal-fetal medicine at the University of Texas Health Sciences Center in Houston, recommends, “For a singleton pregnancy, take 0.4mg daily; for twins, 1mg is recommended.” She is also a mother of twins.
3. Twin Pregnancy Means More Prenatal Appointments
People carrying twins should expect more frequent appointments. Dr. Monga says a singleton pregnancy usually requires one anatomy ultrasound and one fetal growth assessment, while twins need regular monitoring for differences in growth. Near the due date, clinicians may also perform fetal heart-rate monitoring or ultrasound twice weekly.
4. Early Pregnancy Symptoms May Be Stronger and Last Longer
Human chorionic gonadotropin (hCG) levels are higher in twin pregnancies and are one of the main contributors to morning sickness. Dr. Al-Khan says, “Most women carrying twins experience more severe nausea and vomiting in early pregnancy, although symptoms generally begin to improve around 12–14 weeks.”
Other conditions, including back pain, insomnia, acid reflux, anemia during pregnancy, and postpartum hemorrhage, are also more common in twin pregnancies.
5. Bleeding Is More Common Early in a Twin Pregnancy
Do not panic if you have light bleeding early in pregnancy. Dr. Al-Khan says, “The miscarriage rate is higher in multiple pregnancies, so light bleeding is more common in the first trimester.” Seek immediate medical care if bleeding is accompanied by significant abdominal pain, clots, or heavy blood loss.
6. Fetal Movement Does Not Begin Earlier
Many people assume they will feel twins move sooner, but fetal movement typically begins around 18–20 weeks, similar to a singleton pregnancy. In a first pregnancy, it may be mistaken for gastrointestinal movement.
7. Weight Gain Is Greater, but Should Still Be Managed
Twins mean two fetuses, two placentas, and more amniotic fluid, so greater weight gain is expected. Dr. Al-Khan recommends:
Women of normal weight should gain 37-54 pounds (about 16.8-24.5 kilograms);
Women who are overweight should gain 31-50 pounds;
Women with obesity should gain 25-42 pounds.
Dr. Monga adds, “We do not recommend that women carrying twins gain more than 40 pounds or less than 15 pounds.”
8. The Risk of Gestational Diabetes Is Higher
Dr. Monga notes that gestational diabetes is more common in twin pregnancies. Although twins are not necessarily large, gestational diabetes can increase the likelihood of cesarean delivery and the future risk of type 2 diabetes.
9. The Risk of Preeclampsia Is Higher
Preeclampsia is also more common in twin pregnancies. It is a pregnancy complication characterized mainly by high blood pressure, protein in the urine, and edema, and may progress to life-threatening eclampsia. Although the exact cause remains unclear, its higher incidence in multiple pregnancies is well established.
10. Preterm Birth Is More Likely, With 34 Weeks an Important Milestone
Most twins are born around 36-37 weeks, considerably earlier than singletons at about 40 weeks. Some are born before 34 weeks. Dr. Al-Khan says, “Although the risks of preterm birth after 34 weeks are manageable, premature infants may still have underdeveloped lungs, low birth weight, and other complications.”
Unfortunately, bed rest and medication do not effectively prevent preterm birth in multiple pregnancies. Clinicians generally monitor patients closely and intervene when necessary.
11. Cesarean Delivery Is More Common for Several Reasons
Women carrying twins are significantly more likely to have a cesarean delivery. Dr. Al-Khan explains that one fetus may be breech and that multiple births are more complex and require closer management of labor, leading clinicians to favor cesarean delivery for safety.
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Collected online