Thankfully, as in single pregnancies, it is usually temporary and only lasts the first few months as the woman's body adjusts to the pregnancy. (babygaga.com)
While this is not something you should be overly concerned about, you should be aware that you will probably get bigger than moms with single pregnancies, and it will happen faster. (babygaga.com)
Babies born from multiple - birth pregnancies are much more likely to result in premature birth than those from single pregnancies. (en.wikipedia.org)