31 Weeks of Pregnancy

At 31 weeks of pregnancy, the pregnant woman starts the countdown to the birth of the baby and with that the anxiety gets bigger and bigger. Regarding the development of pregnancy, it can be noted that the space inside the uterus is already very small, making the baby have less room to move, staying most of the time with the chin close to the chest, arms crossed and knees bent.

However, even with little space, the mother can still perceive the baby’s movements at least 10 times throughout the day and he is also quite smart: during this gestational period he can already perceive external stimuli and even react to they. For example, the baby already knows when the mother is talking, exercising, singing or listening to loud music, and it is exactly at these times that the baby is most agitated.

Want to catch up on the other symptoms and events of 31 weeks of pregnancy? Just keep reading this post! 😉

Symptoms at 31 weeks of pregnancy

The 31 weeks of pregnancy mark the end of the 7th gestational month and with that the final symptoms begin to get even more intense. Therefore, it is normal for the mother to be indisposed and need to rest more so that the inconveniences are not too great.

See below for the main symptoms of 31 weeks of pregnancy:

Change and tenderness in the breasts

During this gestational period, it is very common for the pregnant woman’s breasts to become larger, more sensitive and with darkened areolas. In some cases, it may also be noticed the appearance of some lumps in the breast which, in most cases, are not a concern and it is just milk production.

So that this symptom is not so uncomfortable, it is recommended that women opt for the use of bras and comfortable clothes during the end of pregnancy and during the breastfeeding period. If you haven’t bought anything in specific stores for pregnant women, we are sure that this is an excellent option.

Emergence of the black line

The black line refers to a dark line that may appear on the belly of some pregnant women and poses no health risk. So, if you noticed the appearance of a dark line near the navel, this is the result of the black line. But rest assured: just as she appears suddenly, she will also disappear within a few months of giving birth.

difficulty breathing

At this stage of pregnancy, your baby is already quite big and, with that, the uterus starts to put great pressure on the diaphragm, making breathing difficult and causing fatigue. Another reason that certainly contributes to fatigue is that the pregnant woman is having difficulty resting and sleeping and, so that this does not interfere with her daily tasks, it is essential that the mother develop a habit of rest and take short breaks during the day.


As mentioned before, a mother in the 31 weeks of pregnancy can have difficulty sleeping and even insomnia and the reason for this is the lack of a comfortable position to rest and the anxiety that has been taking over the last few days. Ideally, she finds a way that gives her comfort and security to lie down and that she drinks soothing teas at night to ensure a peaceful, restful night.

Back pains

The belly is growing more every day and along with it the pain and discomfort in the back also grow. To prevent the discomfort from being too great, it is ideal that you stretch and keep your rest and sleep up to date.

If the pain is preventing your activities, talk to your doctor so he can evaluate the most effective treatment for your case.

frequent urination

And once again this symptom is on our list! And the reason for this? The pressure that the uterus keeps putting on the bladder, which ends up reducing its reservoir and increasing the urge to pee in a short period of time. To avoid the inconvenience to be great, take some measures daily, such as: avoid frequenting places that do not give you easy access to the bathroom, do not hold urine, do not drink too much liquid moments before bedtime and make a habit of going to the bathroom periodically.

Changes in pregnant women at 31 weeks of pregnancy

The main changes in women are associated with greater sensitivity in the breasts and the appearance of the nigra line in the abdominal region. But rest assured: although these changes can cause some awkwardness at first, both pose no health risk and tend to disappear soon after the baby is born.

In addition, mom can be very anxious at this time and this can either be associated with hormones that are produced in excess during pregnancy or because the pregnancy is coming to an end. Whatever the reason, it is recommended that the pregnant woman try to distract herself by doing activities she likes and drinking calming teas (always with the approval of the trusted obstetrician).

If the symptom of anxiety or sudden mood swings is too much, be sure to comment with your doctor during prenatal consultations so that he can evaluate your case, ok? After all, pregnant women who experience mood swings during the third trimester of pregnancy are more likely to develop postpartum depression, and it is essential that treatment start at the first symptoms that appear.

Development of the fetus at 31 weeks of pregnancy

The most striking factor at 31 weeks of pregnancy is the advanced development of the fetus’ lungs. Now they are able to produce surfactant, a kind of lubricant that prevents the alveolar walls from sticking together, contributing to breathing.

In addition, it also happens in this gestational stage:

  • The layers of subcutaneous fat thicken and the blood vessels are not so much more evident;
  • The skin is no longer as red as it was in the past weeks;
  • Your face becomes more rounded and smoother-skinned, much like a newborn’s;
  • At this stage, the baby starts to yawn several times throughout the day, which can be easily repaired in a morphological ultrasound.

What is the size of the fetus at 31 weeks of pregnancy?

In the 31st gestational week, the baby measures approximately 41.1 cm, which is equivalent to the size of a lettuce, and its estimated weight is 1,502 kilos.

Know what to do during the 31 weeks of pregnancy

Your pregnancy is almost over, but you are very wrong if you think that the care is over. Quite the contrary, in this gestational stage it is essential that your care is redoubled to ensure that both you and your baby are very healthy.

With that in mind, we’ve separated a list with some precautions you should take during the 31st week of pregnancy. See what they are:

  • Take care of your diet: the incidence of pre-eclampsia has risen significantly in recent times in response to malnutrition in pregnant women. Therefore, do not neglect a good diet, without going overboard with salt or frozen foods and fast foods. Preferably count on the help of a nutritionist to show you the most suitable meal plan for you;
  • Take calming teas: as we said earlier, at this stage of pregnancy it is very common for mothers to have insomnia or anxiety and an excellent way to combat these symptoms is to drink calming teas at night. But beware: before drinking any tea, consult your doctor to find out if it is safe for you and your baby, ok?
  • Take cranberry or blueberry juices: urinary tract infection is quite common during pregnancy and to avoid it in a natural and healthy way you can include cranberry or blueberry juices in your diet. But of course: just like teas, tell your doctor so he can tell you whether or not the consumption of these properties is allowed in your case;
  • Consume foods rich in magnesium: cramps can also appear and foods rich in magnesium such as bananas, strawberries, brown rice, eggs, spinach and green beans are excellent allies to avoid them. In addition, a diet rich in magnesium can also contribute to the correct development of your baby’s bones and joints;
  • Take short breaks throughout the day: Rests throughout the day will alleviate some of the common discomforts of late pregnancy, such as: back pain and tiredness. Therefore, plan to take short breaks and if possible get a good night’s sleep every day;
  • Find a good sleeping position: Speaking of regular sleep, one of the factors that affect (a lot) your night’s sleep is the difficulty in finding the best position to sleep. And let’s tell you that lying on your side with a pillow between your legs is one of the most comfortable and safest ways for you and your baby;
  • Try sleeping in a bra: Another factor that will probably bother you from now on is the weight and/or sensitivity of your breasts. To alleviate it, you can try sleeping in a bra, as long as they are comfortable and preferably without a cup;
  • Massage the perineum area daily: this daily habit can contribute a lot to hydrate and make the tissues more supple, directly contributing to normal delivery. Therefore, use sweet almond oil and plan for it;
  • Don’t miss prenatal appointments: prenatal appointments are very important in the final stretch of pregnancy to ensure that everything is fine with your baby and that the delivery will not happen too soon. So don’t miss appointments and take advantage of this moment to clarify all your doubts regarding pregnancy, childbirth and the newborn baby.

So, did you manage to understand the main symptoms and events of the 31 gestational weeks? We hope so! If you have any doubts regarding this matter, just comment here in the post and we clarify.

Ah, remember that all the content contained in this post is informative and does not replace your visits to prenatal consultations. Quite the contrary: we at PregDream encourage medical monitoring to be carried out rigorously so that your health or that of your baby is not put at risk, ok? Take care of yourself!

And if you want to stay on top of the events of the next weeks of pregnancy, just keep an eye out here on our blog . In the next few days we’ll release the other posts and we’ll wait for you here. To the next!

Dr. Tabriella Perivolaris, MD1
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Dr. Tabriella Perivolaris, Sara's mother and fan of fashion, beauty, motherhood, among others, about the female universe. Since 2018 she has been working as a copywriter, always bringing to her articles a little of her experience and experience as a mother and woman.

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