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)
Each baby is about the size of an eggplant.
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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).
(RELATED: Your twins will need a lot of gear. Here's the complete twins baby registry checklist to get ready for your twins' arrival.
Total weight gain for the twin pregnancy so far will average between 23 to 34 pounds (10.4 to 15.4kg).
Pictures and Video
Here’s an ultrasound video of what you might see at 23 weeks pregnant with twins:
Belly Picture at 23 weeks:
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.
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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.
(RELATED: Still looking for the right twin gear? See my Twin Baby Gear Essentials.)
Your Fellow Parents at 23 Weeks Pregnant with Twins
RJ – “We are 23 weeks! Just made our announcement on social media and are starting to register. So overwhelming figuring it all out. Been blessed getting a few things from friends.”
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.
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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.
(NOTE: Still expecting? 
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Sources: When You’re Expecting Twins, Triplets, or Quads: Proven Guidelines for a Healthy Multiple Pregnancy by Dr. Barbara Luke and Tamara Eberlein and Babycenter’s Average fetal length and weight chart
