It's certainly true that a double pregnancy is more work for your body than one, and that there is an increased risk of developing pregnancy-related complications than with a single pregnancy.
But just as with single pregnancies, being pregnant with twins isn't an illness, but a natural state that the body is designed to handle, so there's no need to be alarmed by the list of potential complications.
Is a twin pregnancy harder and does it carry higher risks?
Some pregnancy complications are more likely to occur with twin pregnancies, but not all, and you may sail through the pregnancy with little to distinguish yours from a normal, healthy, single pregnancy other than a bigger bump and a little extra weight.
It's wise to be aware of the potential discomforts and complications you might face, such as an increased likelihood of morning sickness, haemorrhoids and anaemia and higher risks of problems associated with high blood pressure, low fetal growth and premature labour (find out more here), but always remember that by far the majority of twin pregnancies result in the birth of healthy babies to healthy mums.
By and large there is no difference in treatment when you develop pregnancy complications in a twin pregnancy, rather the difference is in your prenatal care - you may undergo more tests than women expecting single babies, but this isn't necessarily the case. Once your doctor and midwife are aware that you are carrying twins they will tailor your antenatal care appropriately and keep a keen eye out for warning signs of complications.
If you think there is a greater chance you might have twins (for example, if there is a family history of twins) or you have found out that you are expecting twins, there really is no reason to panic, it's quite an adventure! But for a useful overview, go to Pregnant with Twins.
