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27 weeks pregnant: baby development and diet tips

Your baby still has some growing to do but as of today, he’s over 30 cm long, big enough laying down to fit on your forearm between your hand and your elbow. As it has been 29 weeks since you have had a period, welcome to the third trimester of pregnancy. Read more about this week.

3 mins to read May 17, 2021

At 27 weeks pregnant, your baby still needs to grow. His respiratory system has everything it needs to allow him to breathe, but it is still too immature to actually do so without a lot of help. His lungs are divided over 17 levels, forming the bronchial tree, but air exchange would be very difficult if your baby were to be born now. However, at this point there is usually enough surfactant (a substance that lines the inside of the aveolar surface, facilitating the opening of the cells and preventing sagging) and enough blood vessels to permit gas exchange such that babies born prematurely at this age may survive with intensive care. But it’s best to let baby grow a little more.

It has been 29 weeks since you’ve had a period – most women enjoy the pause! 29 weeks of amenorrhea translates to the 27th week of a pregnancy. Have you been trying to picture how big your baby is so far? Well, when you're 27 weeks pregnant, your baby is around 34 cm from the top of head to the ends of her toes. Imagine that her head is around the size of a small-medium sized orange. We’re willing to bet she is just lovely!

At 27 weeks pregnant, one of the best ways to meet your nutrition and calorie needs is by eating a variety of foods from the food groups. This includes servings from the meat (or other proteins), dairy, fruit, vegetables, and grain groups. Although your health care provider may have prescribed a supplement of certain vitamins or minerals, it is still important to consider the fiber and energy that food brings to your diet. Think back over the last few days and ask yourself if you have missed eating foods from a food group. If so, it’s time to put foods from that food group on your shopping list and keep them at the front of the refrigerator or pantry. Try to eat from each food group, each day.

Even if you are an experienced mum, it can be helpful to take classes that prepare you for childbirth. Researchers are constantly discovering new information that can help you during your pregnancy. In addition, delivery methods change frequently. Understand the changes occurring in your body during labour and delivery, and learn some good relaxation techniques for limiting anxiety when the time comes. Other good reasons to enrol in a childbirth preparation course? You may be giving birth in a new place this time around if your last baby was delivered some years ago.