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Women Fertility

Distinguishing Between Single and Twin Pregnancy Symptoms


What is twin pregnancy?

Twin pregnancy is the term used to describe a pregnancy in which two foetuses are developing inside the uterus at the same time. 

Difference between single and twin pregnancy symptoms

Intense morning sickness: One of the most common symptoms of a twin pregnancy is an increased level of nausea and vomiting. This is because the body is producing more hormones to support the growth and development of two babies, which can lead to a greater level of morning sickness, also known as hyperemesis gravidarum. 

Foetal movement is more than one area: Another symptom of a twin pregnancy is an increased level of foetal movement. Because there are two babies growing in the womb, there is more room for them to move around, which can lead to more frequent and intense foetal movement. This can be especially noticeable in the second trimester, when the babies are more active.

Gaining more weight: Twin pregnancies often require more weight gain than single pregnancies. This is because there are two babies growing in the womb, and the body needs to provide additional nutrients for their growth and development. Expecting mothers carrying twins tend to gain more weight earlier and at a faster rate than those carrying a single baby.

Severe fatigue: Twin pregnancies can cause more fatigue and exhaustion, as the body is working harder to support two growing babies, which can lead to a greater level of fatigue and exhaustion.

Very Frequent Urination: Frequent urination is a common symptom of pregnancy, but it can be more pronounced in twin pregnancies. This is due to the pressure of two growing babies on the bladder and urinary tract.

Rapidly growing uterus: A twin pregnancy can cause the uterus to grow more rapidly than in a single pregnancy. Belly appears larger than expected for the gestational age and is one of the early signs of twin pregnancy.

Increased appetite: Twin pregnancies require more calories, which can lead to an increased appetite. 

Hearing more than one heartbeat on a foetal doppler: During a prenatal check-up, a healthcare provider may use a foetal doppler to listen to the baby’s heartbeat. In a twin pregnancy, it’s possible to hear more than one heartbeat, which can confirm a twin pregnancy.

How is a twin pregnancy belly different from a singleton belly?

A twin pregnancy belly may appear larger than a singleton belly due to the fact that there are two babies growing in the womb. The uterus also tends to grow more rapidly in a twin pregnancy, which can make the belly appear larger than expected for the gestational age.

The size of the belly can also depend on the position of the twins in the uterus. If the twins are sharing a placenta and are in a single amniotic sac, the belly may not appear much larger than a singleton pregnancy. However, if the twins are in separate amniotic sacs, the belly may be larger and have a more pronounced shape, as the babies can take up more space in the uterus.

How is a twin pregnancy confirmed?

A twin pregnancy can be confirmed in a variety of ways, including:


Foetal Doppler

Blood Test

Clinical examination

Complications associated with twin pregnancies

Some of the potential complications associated with twin pregnancies include:

Premature birth: Twin pregnancies have a higher risk of premature birth, which can occur before 37 weeks of pregnancy. 

Low birth weight: Twin babies are often born with a lower birth weight than singleton babies. 

Twin-to-twin transfusion syndrome (TTTS): This is a rare condition that can occur when the twins share a placenta and one twin receives more blood flow than the other. This can lead to one twin having too much amniotic fluid (hydramnios) and the other twin having too little (oligohydramnios). If left untreated, TTTS can be fatal for both twins.

Placental abruption: This is a serious condition in which the placenta separates from the uterus before delivery. This can lead to bleeding and can be fatal for both mother and babies.

Preeclampsia: This is a condition that occurs during pregnancy and is characterised by high blood pressure and protein in the urine. It is more common in twin pregnancies than in single pregnancies.

Anaemia: Twin pregnancies can lead to a higher risk of anaemia as the mother’s body needs to make more blood to support two growing babies.

Caesarean delivery: Twin pregnancies have a higher rate of caesarean delivery than single pregnancies, as vaginal delivery can be more difficult and riskier.

Tips to stay healthy during pregnancy

  • Eat a well-balanced diet 
  • Stay physically active with moderate exercise as approved by your healthcare provider
  • Get enough sleep and rest
  • Take prenatal vitamins as prescribed by your healthcare provider
  • Stay hydrated 
  • Avoid alcohol, tobacco, and illegal drugs
  • Manage stress through relaxation techniques
  • Keep all prenatal appointments and follow your healthcare provider’s instructions


In conclusion, a twin pregnancy is a unique and exciting experience that can come with its own set of challenges. By staying healthy, getting enough rest and following the advice of your healthcare provider, you can have a successful and happy twin pregnancy. Then Ayu Health may be your best bet! For booking an appointment, call 636-610-0800

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About the Author

Dr goel
Dr. S. Goel
MBBS PGDCM FID MBAHHM at Ayu Health | Website | + posts

Dr. S. Goel  is a renowned Internal Medicine Specialist currently practicing at Ayu Health, Bangalore.  He is a Specialist in Internal Medicine, Diabetes HTN, Paediatric Care, and Family Medicine.

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