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23 Weeks Pregnant with Twins

Here’s what to expect when you are 23 weeks pregnant with twins:

Fetal Development

By 23 weeks in the twin pregnancy each of your twins averages about 11.5″ (29 cm) and will have the following measurements:

Head circumference: 8.5″ (216 mm)
Abdominal Circumference: 7.5″ (191 mm)
Femur Bone Length (about from the waist to knee): 1.6″ (41 mm)

What to Expect

Typical weight gain for Mom at this point is between 1.25 to 2.0 pounds/week (0.6 to 0.9kg).

Total weight gain for the twin pregnancy so far will average between 23 to 34 pounds (10.4 to 15.4kg).

For more details on Mom’s health, see:
Mom & Baby at 23 Weeks Pregnant
Week by week Twins calendar: pregnancy in weeks 20-24

Pictures and Video

Here’s an ultrasound video of what you might see at 23 weeks pregnant with twins:

Belly Picture at 23 weeks:
23 Weeks Pregnant with Twins Belly

If Your Twins Were Born This Week

Your twins are still very early and ahead of the 24 week milestone that is the viability of life threshold. Most twins born at 23 weeks do not survive. Those that do have major medical complications.

What to Prepare This Week

Hopefully your twin nursery is taking shape. When Mom is 23 weeks pregnant with twins, consider your changing table options for twins. You’ll be changing a lot of diapers so make sure this work space is practical.

Dad’s Thoughts

By the time Mom reaches 23 weeks pregnant with twins, she will likely be having leg cramps. You need to be her personal massage therapist and help her get as comfortable as possible.

Still wondering how to prepare for your twins? I cover specific things you should know and prepare for in my Dad’s Guide to Twins book. Learn more about the book here.

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Written by , author of The Dad's Guide to Twins

When You're Expecting Twins, Triplets, or Quads: Proven Guidelines for a Healthy Multiple Pregnancy by Dr. Barbara Luke and Tamara Eberlein
Babycenter's Average fetal length and weight chart