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Expecting Multiples
When You're Expecting Twins, Triplets or Quads
(by Barbara Luke, Sc.D., M.P.H., R.D., and Tamara Eberlein)
Book Review by Twinstuff.Com Staff
This drawing depicts a sideways view of 24 weeks' gestation of births of singletons, twins, triplets and quads.
sideways view of 24 weeks gestations

At 24 weeks, an expectant mother of a singleton is just beginning to show her pregnancy and her uterus is approximately the size of a ball 20 inches around. The twin mom at 24 weeks might look like a typical 32-week pregnancy and may have a uterus 28 inches around.

The triplet mom at 24 weeks may look like a singleton mom would appear at 36 weeks and her uterus would be about 33 inches around, or the size of a smallish beach ball. And at 24 weeks, the mom of quads might look as large as a standard pregnancy's mom at 40 weeks. She would be full-term size, with her uterus 36 inches around.

When You're Expecting Twins...
When Should You Expect to Deliver
Type of Birth Typical Arrival Time Other Factors
Singletons 40 Weeks 5% Born Before 35 Weeks
1% Born Before 31 Week
Twins 36 Weeks 35% Born Before 35 Weeks
10% Born Before 31 Week
Triplets 32 Weeks 80% Born Before 35 Weeks
30% Born Before 31 Week
Quads 30 Weeks No Stats Available

From When You're Expecting Twins, Triplets, or Quads by Dr. Barbara Luke. Copyright (c) 1999 by Dr. Barbara Luke. Reprinted by arrangement with HarperCollins Publishers, Inc. All rights reserved.

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Other Book Reviews

When You're Expecting Twins, Triplets or Quads
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