33 Weeks Pregnant with Twins

Here’s what to expect when you are 33 weeks pregnant with twins:

Twins Fetal Development

By 33 weeks in the twin pregnancy each of your twins is over 17″ (44 cm) from head to foot. Each will average the following:

Head circumference: 12.25″ (311 mm)
Abdominal Circumference: 11.5″ (292 mm)
Femur Bone Length (about from the waist to knee): 2.45″ (62 mm)

Each baby is about the size of a pineapple.

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What to Expect

Typical weight gain for Mom at this point is about one pound per week (0.6kg).

(RELATED: Still expecting twins? Will you be having two boys, two girls, or boy/girl twins? Answer these quick questions to see what several old wives’ tales claim you’ll be having….)

33 Weeks Pregnant with Twins Symptoms

By the 33rd week, Mom may be experiencing some of these symptoms:

  • hot flashes and overheating
  • swollen feet and legs
  • back and side aches
  • heartburn
  • full bladder and frequent bathroom visits
  • shortness of breath

Pictures and Video

Here’s an ultrasound video of what you might see at 33 weeks pregnant with twins (this video is actually for 34 weeks):

Belly picture at 33 weeks:
33 Weeks Pregnant With Twins Belly

If Your Twins Were Born This Week

Your twins are late preterm and the odds of survival are very good. They are in good company as many twins are born during this period. Twins born at 33 weeks have an increased risk of permanent health issues but generally speaking are healthy. Twins born this week average a hospital stay (including the NICU) of about 20 days.

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What to Prepare This Week

When Mom is 33 weeks pregnant with twins, it is a great time to install your twin car seats in your vehicle. You don’t want to wait until the last minute and it will be fun to see them in the backseat as you get in and out of the car. It will foreshadow your life to come and help you visualize your twins as part of your daily life.

(RELATED: Check out the Dad's Guide to Twins Youtube channel for additional helpful twin tips and tricks videos.)

Your Fellow Parents at 33 Weeks Pregnant with Twins

Jon P. – “Wife and I finished getting the ‘go bag’ packed this week. Just put in in order for a few things at Target because….’winter is coming’!”

Kim S.- “We just sold our house! Have to be moved out soon. We are just flying by the seat of our pants haha!”

Game of Twins Shirt

Holly B. – “33 wks and 4 days… don’t want to complain because we are excited for these 2! But tired and uncomfortable, and some contractions.”

Christina C. – “Just ordered baby mobiles for the cribs. The last thing for their room.”

(RELATED: Check out the Dad's Guide to Twins Youtube channel for additional helpful twin tips and tricks videos.)

Rebecca H. – “This last month is going to be the end of me. My two year old can smell my weakness.”

Ruvarashe T. – “This week was terrible. I can’t sleep and it seems like my womb is really heavy. I can’t wait to go for the c section.”

4 Critical Mistakes Expectant Twin Parents Make

Kellie R. – “Mom was doing pretty good until a couple days ago. Then I was admitted to the hospital for high blood pressure and protein in my urine.”

Dad’s Thoughts

By the time Mom reaches 33 weeks pregnant with twins, she is physically miserable. She can’t get comfortable, has trouble sleeping, and can’t find relief. Do what you can to ease her burden and tend to her in the weeks that are yet to come.

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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.

Raising Twins Book

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View entire Twin Pregnancy Week by Week

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

Further Reading

Dad's Guide to Raising Twins book
Don't forget to pick up a copy of the definitive guide to raising twins. "Dad's Guide to Raising Twins" was written for fathers of twins to help guide you through the first several years with twins. Click here to learn more about the book and get your copy.

1 thought on “33 Weeks Pregnant with Twins”

  1. Our little girl couldn’t wait to get here. Her water broke, we had a urgent c section, now we have two beautiful babies. Though they are in the NICU I am relived to know that mom gets time to recover without having to take care of two babies, along with them having care only 10 feet away and constantly being monitored. I cant wait to be able to take these two babies home.


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