31 Weeks Pregnant: Signs and Symptoms

Check out the signs and symptoms of 31 weeks pregnant woman. Also, learn about the sensations and feelings along with the fetal development in the third trimester.

31 Weeks Pregnant

In terms of pregnancy, it is 31 weeks from conception or this is 33 obstetric week. Before delivery, there are about 7 weeks. Some mothers notice that their tummy goes down a bit. This indicates the dense insertion of the baby’s head into the mother’s pelvis. This is not a sign of the risk of premature birth. Speaks about the ideal ratio of the size of the pelvis and head. There is nothing wrong.

Signs and Symptoms in 31 Weeks Pregnant Woman

There are new signs and symptom that 31 weeks pregnant woman may feel. These signs generally occur in the beginning to middle of the third trimester. So, here are some symptoms you may notice.

  1. Cramping in the Abdomen
  2. Abdominal Cramping

    These are the so-called Braxton-Higgs fights. They can be slightly painful, but they never lead to the opening of the cervix and delivery.

    The main sign of the preparatory and not clan fights is their irregularity and lack of reinforcement. Also, a woman can easily distract from them.

  3. Insomnia
  4. There are many reasons for this anxiety in the future mother, unusual feelings in the form of training fights, heartburn.

    There is often a feeling of lack of air felt by 31 weeks pregnant woman, lying of the sides, etc. Unfortunately, only the birth can radically help in this.

  5. Lower Back Pain
  6. Lower Back Pain

    There is aching in the lower back, in the area of the scapula. It hurts the spine and muscles.

    Most of the future mothers, especially those who give birth after 30 years, have many problems with the spine. With pregnancy they make themselves felt.

    Doctors usually advise only to endure. There is not much left at all.

  7. Frequent Urination
  8. Very frequent urination especially at night 5-7 times a night, mummies can get up to the toilet. No sleep.

    The only recommendation, in this case, may be the refusal to take liquid for 2-3 hours before bedtime.

    However, it will not save you from nighttime urination, of course, since the fetus in any case strongly presses on the bladder.

Fetal Development in 31 Weeks Pregnant Mother

The kid is actively studying his house. After all, he can see and hear. Of course, while his eyes are almost always closed, it’s not easy to keep them open in the water, but the light that is turned on and off is very good. Pupils, in response to changing lighting, narrow or expand.

The child sleeps most of the day. However, in a dream it makes movements. After all, he, like us, can see dreams!

With ultrasound, a doctor pays attention to what happens to the fetal lungs at thirty-one weeks of development, as far as they are mature. A good sign is the echogenicity of the lungs, similar to that of a liver. Many babies born on this date can already breathe on their own but not all.

31 Week Fetal Development

The growth of the fat layer continues. It is necessary for the baby to be able to live outside the womb. Fat helps to keep warm.

In the liver of the child, there is an accumulation of iron. It will be spent after birth. The newborn usually has a very high-level hemoglobin for this reason.

The testicles of almost all the male representatives have already descended into the scrotum at this time. If this did not happen, it does not matter. Some boys are born and live the first year of life with no testicles in the scrotum. And in the future, this situation requires surgical intervention.

Since the water with a period usually becomes slightly less, and the fruit grows, the character of its movements changes. The kid cannot stretch out, turn over. The exception is women who have been diagnosed with polyhydramnios.

The baby receives in utero from the mother’s blood antibodies to the various infections that she faced. For example, antibodies to the herpes virus. In the future, this process will continue with lactation. Antibodies babies will receive at least the first six months of life.

In the future, this will interfere with hydrochloric acid in the stomach. It neutralizes pathogenic bacteria, microbes, but also antibodies.

True, not all antibodies from maternal blood for the fetus are needed and useful. Antibodies arising from Rh-conflict are very dangerous. Just like lactation in certain dangerous infections, for example, HIV.

31 Week Fetal Development

Approximate weight of the fetus is now 2000-2300 grams. A fetometry is as follows:

  • BPR – 77-91mm.
  • LZ – 98-116mm.
  • OG – 289-333 mm.
  • OJ – 267-325 mm.
  • BK – 58-68mm.
  • PC – 53-63mm.
  • KP – 46-54mm.
  • KG – 54-62mm.

Ultrasound of 31 Weeks Pregnant Woman

The third planned study, which doctors appoint in any case – even if the pregnant woman has no complaints and deviations from the norms. However, rarely this ultrasound is the last. Usually, one more thing is done, closer to childbirth, if a woman is put in a hospital – a standard examination.

What is the doctor looking for ultrasound diagnosis in the uterus of a future mother? At the very beginning of pregnancy, it is necessary to confirm that it is developing precisely in the uterus and determining the gestational age.


At 12 weeks, ultrasound helps to detect chromosomal abnormalities in the fetus, at 20 weeks – many developmental anomalies.

In 31 weeks or 32 weeks of gestation (everywhere we mention obstetric terms, “real” about 2 weeks less), and later, to examine the placenta, blood flow in it, amniotic fluid and the child’s development rate.

The plan of the study is approximately the same: determine the position of the fetus in the uterus (pelvic, head or transverse), measure the head, tummy, bones of the hands and feet.

According to these data, the doctor sets the gestational age. It may not coincide with gestational or obstetrics. But it is for this period, judging by the parameters, a child is developed.

If there is a discrepancy, the doctor concludes that this is either a large fetus (if the development is ahead of development) or that has an intrauterine growth retardation. The latter is very often observed.

Often the developmental delay is asymmetric, that is, the baby is just thin: the size of the head for its own time and the tummy is less for 2 weeks or more.

Studying Placenta in 31 Weeks Pregnant Woman

Why is the fetal development delayed? The most common problem is the placenta. The doctor of ultrasound diagnostics determines its exact location – on the front or back wall it is formed and on how much high from the internal pharynx.

  1. Placenta is Low
  2. Studying Placenta

    If the placenta is too low, less than 4-5 cm before the cervix.

    Then there is also a risk of severe bleeding during and after delivery.

    The one on which the placenta is located, if it is high enough, does not play a big role.

    Nevertheless, in the form of the conclusion of US this information is fixed.

    This is because it is useful to doctors in case cesarean section.

  3. Thickness of Placenta
  4. Measure the thickness of the placenta. It’s right to do this in the place where the umbilical cord leaves it. Normally, the thickness of the placenta is now equal to the obstetric term of pregnancy.

    Hypoplasia of the placenta (too thin child’s place) is a sign of fetoplacental insufficiency. And hyperplasia (thickness above the norm) speaks of her edema.

    Often this happens with intrauterine infection, inflammatory process and Rh-conflict.

  5. Degrees of Placenta
  6. During the entire pregnancy, the placenta changes – “ages” or “ripens.” In total, doctors distinguish four degrees of maturity of the placenta.

    The Placenta

    The degree is set depending on the condition of the placenta layer adjacent to the uterine wall, the degree of its division into lobules.

    Thus, the zero degrees of maturity of the placenta, as it occurs in the first half of pregnancy, does not imply the separation of the placenta into lobules. And at the third, it completely has a lobed structure.

    It is believed that in the normal placenta to 34 weeks has 0-1 degree of maturity. After 34 – the second. And after 36, maybe the third. If the placenta has matured too quickly, say, at 34 weeks is already the third degree of maturity, then it is most likely talking about fetoplacental insufficiency.

    However, it should be confirmed by a delay in fetal development of the fetus and a violation of blood flow. If there are no violations, the fetus is healthy, you do not have to worry.

Another frequent finding is calcification in the placenta. This is its parts, which do not fulfill their function, due to spasm of blood vessels and necrosis of tissues. One of the signs of placental insufficiency and gestosis.

Identifying Hypoxia in 31 Weeks Pregnant Woman

Identify hypoxia fetal ultrasound with very high accuracy is impossible. However, the doctor can conduct a study on the biophysical profile of the fetus. It lasts about half an hour.

The doctor observes the movements of the baby, his breathing movements and muscle tone (with hypoxia, the muscles of the baby are relaxed) and on the basis of the resulting data draw conclusions.


Relatively reliable determine hypoxia with CTG. Normally, the fetal heartbeat with active movements becomes more frequent. And in the case of the hypoxic patient, on the contrary, it shrinks or does not change.

Many KTG devices are equipped with a special button, which women should press when they feel the fetus moving. The doctor then compares whether there was a palpitation at the moments of depression.

KTG is a rather “capricious” study. The result can be influenced by the weather, the level of glucose (CTG is not done on an empty stomach, but after at least 30 minutes from a meal), and so on.

If dubious data are received, this is not an excuse to intimidate a future mother immediately. CTG is repeated later. If necessary, an ultrasound is performed with an assessment of the placental structure and blood flow.

The doctor and amniotic fluid, namely, their quantity, are exploring. If the amniotic fluid is too small – this is one of the signs of poor placental function, as it is the water it produces. If the water is critically small, this is an indication for early delivery.

Moderate infertility can occur at this time of pregnancy and beyond any pathologies. But only if all other parameters correspond to the norm. It is also considered normal to moderate polyhydramnios – it happens with a large fetus.

Blood Flow and Vascular Resistance in Circulatory System

It is mandatory to study the speed of blood flow and vascular resistance in the circulatory system of the baby. The umbilical cord is also examined. The doctor looks, does not she wrap the neck of the fetus.

Blood Flow

Precise diagnosis, in this case, is possible only with ultrasound in 3D or 4D format.

With the usual two-dimensional the doctor sees only that the umbilical cord is located in the neck region, and wound on it or not – it is not known.

However, even if the umbilical cord wraps around the neck – this is not a cause for concern. The kid still has time to unwind. If there is no accusation now, it’s not at all a fact that it will not happen in childbirth.

Obstetricians can remove the umbilical cord from the baby’s neck just after the birth of his head.

Cervix Exam of 31 Weeks Pregnant Woman

Also, the doctor pays attention to the cervix. Many specialists measure its length vaginally or through the abdomen.

Cervix Exam

This is especially necessary if the mother has a threat of premature birth or in the past they were. The length of the cervix is at least 25 mm.

If she is now, say, 20 mm, then doctors can recommend wearing pessaries up to 37-38 weeks – a small device that is placed on the cervix, unloading it.

However, sometimes women walk up to 40 weeks with a 20 mm neck and without a pessary. It’s just a risk factor, but not an absolute truth.

Tips for 31 Weeks Pregnant Woman

With proper nutrition, most expectant mothers vitamins, obtained with food. But very few people know how to eat right. So, what you need to know about vitamins and their compatibility.

  1. The disadvantage vitamin B1 – the consequence of a large number carbohydrates in the diet. And carbohydrates are not just all kinds of sweets, but also porridges, pasta, etc.
  2. The lack of B6 and B2 vitamins can be the result of an overabundance of protein in food, as they are necessary for its assimilation to the fullest.
  3. Fat-soluble vitamins (A, D, E, K) will not be fully absorbed if the diet is too low in fat. And another interesting fact – the symptoms of a lack of vitamin A can appear even with its normal intake of food, but if the body lacks zinc.
  4. Expert Advice

  5. “Washing out” water-soluble vitamins with sweat (a large loss of moisture).
  6. Diseases of the digestive tract. For example, in diseases of the liver and pancreas, the absorption of fats and, consequently, fat-soluble vitamins deteriorates.
  7. Accepted drugs like the one that prevents the assimilation of folic acid and ascorbic aspirin. Hydrocortisone- “enemy” of vitamin B6. And drugs that reduce the acidity of the stomach, and the same soda, interfere with the absorption of fat-soluble vitamins.

    By the way, about folic acid. Its disadvantage is for all expectant mothers, so you need to start taking a vitamin supplement during pregnancy planning.

    This is the best prevention of chromosomal abnormalities in the fetus. Continue reception preferably until the end of pregnancy and during lactation. Poorly absorbed folic acid in combination with zinc.

  8. Calcium and magnesium are not taken together. But it is these two drugs most often prescribed by gynecologists. Magnesium – from hypertonia, and calcium – to prevent a strong divergence of the pelvic bones, dental health, etc. To each of the micronutrients to benefit, their reception should be divided at least two hours.

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31 Weeks Pregnant: Signs and Symptoms