Seventh month of pregnancy: see the changes of mother and baby

The 7th month of pregnancy represents the period from the 27th to the 30th week or the beginning of the 3rd trimester:

Along with the passage of time, the mother’s and baby’s organisms undergo transformations.

A characteristic of this gestation period is that there is not so much space for the baby to be moving. This makes it easier to perceive their movements and, in some cases, the child’s kicks.


Common symptoms in the seventh month of pregnancy

One of the main aspects of the 7th month of pregnancy involves the size of the belly. Therefore, you may already be feeling fatigue and swelling in some areas.

But there are some signs and symptoms that are also common:

Back pain

One of the common discomforts of the last trimester of pregnancy is back pain . This is due to the increase in the volume of the uterus, due to the growth of the baby.

As a consequence, there may be an overload of the lumbar region, causing pain in the pregnant woman.

It is possible that, when you apply force, the spine causes contractures (when the muscle contracts and does not relax properly again) in some muscle groups, causing, for example, low back pain and sciatica.


We can classify insomnia as an accumulation of all other symptoms. The size of the belly that limits sleeping positions, the frequency of urination that increases, back pain. All of these symptoms influence sleep changes.

There are some precautions that can be practiced and help to minimize the impacts on sleep quality.

For example, you can avoid taking too many fluids before bedtime. This decreases the number of times you will feel like going to the bathroom.

In addition, another option is to take a rest of at least 2 hours a day, with your legs raised, supported on the wall or on a high pillow.

This habit decreases the chances of swelling and improves nighttime sleep, relieving the feeling of heaviness in the legs.

Using other pillows and cushions on the bed also facilitate the process of falling asleep. This is because, at 7 months, you should already have a big belly that limits sleeping positions and it is in this function that the pillow comes in to assist.

It is possible to place one on the head, one between the legs and one to support the belly.

Read more: Natural sleep remedy: 6 home treatment options

Difficulty breathing

Some pregnant women may complain of shortness of breath, in addition to chest pain . The movements are becoming more and more limited, since the uterus occupies part of the space that was previously occupied by the lungs.

This symptom is present until the last weeks of gestation, when the child is positioned upside down on the pelvis, in the delivery position.

Baby changes

At the beginning of the 7th month of gestation, the baby must be weighing around 2 kG and approximately 40 cm, equivalent to the size of a cabbage.

The lungs and nostrils are already formed, which means that if the baby were to be born now, the baby would be ready to breathe. In addition, other changes can be noticed both in the baby’s physical structure and in his perceptions.

More movement

In general, the baby is more active due to its development, making the mother more easily able to perceive the child’s movements in the belly.

Sensitivity to light

From the 7th month, the baby can already identify the luminosity, being able to distinguish lights and shadows.

Increased body fat

From the 7th month, the baby starts to grow more slowly. That’s because, he needs to focus his energies on weight gain and body fat. This process acts to protect against the temperature difference between the uterus and outside it.

Changes in the mother in the 7th month of pregnancy

Mothers on duty notice changes in their bodies throughout pregnancy. It is the skin that stretches, the chest that grows, the belly that weighs. Here are some of the changes that mothers may notice:

Preparation for breastfeeding

The 7th month represents major physical changes in moms. That’s because, the nipples will enlarge and get darker.

Emergence of stretch marks

At this time of pregnancy, the belly does not stop growing. Therefore, skin care is essential. In addition, there may be an increase in weight, causing stretch marks to also occur on the breasts, thighs and buttocks.

To avoid the marks, it is recommended to moisturize the skin well with almond oil or moisturizing cream .

It is necessary to reinforce, however, that stretch marks can occur at any stage and intensity during pregnancy.

Read more: Stretch Marks in Pregnancy: types (red), best cream, how to avoid?

Spots on the skin

Another very common physical alteration is the appearance of spots on the skin, better known as melasma.

This is due to changes in some hormones such as progesterone , estrogen and MSH (melancholic). To avoid this type of discomfort, the ideal is to make daily use of sunscreen with factor 30, at least.