Week-by-Week Pregnancy: 13th Week
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While the days go by like water, you go a long way as you are looked after. The 13th week of pregnancy has arrived. You have entered the last week of the first trimester, which consists of 3 trimesters, each consisting of 3 monthly time periods. You have successfully passed the more difficult and early stages of pregnancy in your first and last trimesters. They are now put together for their size and equipment at this visible point of use.
Baby at 13th Week
During the pregnancy period, where every day is precious and many changes are experienced, new questions appear in your mind every day. Many of these, of course, is about your baby. So, what do you need to know about the 13-week-old baby?
How Big Has My Baby got?
One of the issues that are wondered before every doctor’s check is how much the baby has grown. Because when you look at the first day, your baby, who started to live as a cell, will reach a human form at the end of 40 weeks. This is, of course, a miraculous event. For now, the weight and height of the 13-week-old baby are expected to be as in the table below.
These values may differ when you go to the doctor’s control. The reason for this is fertilization time. If fertilization took place later, your baby’s height and weight are different.
If we accept this information as a reference, we can say that your baby has reached almost twice the weight of the previous week. This means that it will grow faster now. As a 13-week-old baby, we can say that its size has reached almost the size of a lemon.
Development of Systems and Newly Acquired Skills
As of this week compared to the previous week, your baby will now develop and grow faster. We can say that their organs are positioned where they should be, and some of them even start to work. In line with this information, let’s examine the organ and system development of the 13-week-old baby together.
With the cerebellum starting to form last week, the brain continues to develop, and in the 13th week of pregnancy, the nerve cells in the brain begin to be surrounded by a layer of fat known as the myelin sheath. This sheath is an insulating substance and is a tissue that increases the speed of the impulses in the nerve cells in the central and peripheral nervous systems and lowers the impulse threshold. Also, as of this week, the brain begins to give orders to some glands to produce hormones.
The circulatory system
The yolk sac completely disappears as of this week and the placenta and umbilical cord begin to work in their place. Thus, the circulation between mother and baby continues to increase. Also, although his heart rate has slowed compared to previous weeks, it is still much faster than you. You will be surprised at this speed when you hear the sound during the examination.
The 13th week of pregnancy is the period when the digestive system begins to work quite regularly. The liquid swallowed by the baby passes through the kidneys, is absorbed through the intestines, mixes with the amniotic fluid again, and reaches the umbilical cord. From there it is transferred to the placenta and to the mother’s blood.
The baby, who has started swallowing exercises before, starts breathing exercises as of this week. In the following weeks, your baby’s lungs and diaphragm, which will grow rapidly, begin to prepare for birth.
Get ready for the scream he will start when he is born, as his vocal cords gradually complete their development.
Support and Movement System
The 13-week-old baby can now stretch his whole body and reflexively respond to stimuli. The movements of the little one, who started to make small movements in the previous weeks, are faster this week. You will be able to feel these movements when the bone and muscle structure gets stronger and reaches sufficient size. But it’s still too small for that.
With the kidneys starting to work the previous week, your baby had started to practice peeing. But you don’t have to worry because the waste from this urine reaches the mother’s blood through the placenta.
One of the most curious subjects is the gender of the baby and you have finally come to that week. The 13th week of pregnancy is the time when the genitals almost complete their development. However, if your baby is not ready for this yet, you may not be able to see the gender or your doctor may prefer to wait a little longer to be sure and tell the final result.
Amniotic fluid is very important for the baby’s immunity. In addition, the white blood cells that started to form in the previous week continue their development this week.
13 Week Baby's Movements
As we mentioned before, your baby’s movements are faster now. In fact, in addition to body movements, facial expressions started to become evident this week. If you’re lucky, you might even see him smiling in the ultrasound image.
However, if you have a question about whether you can feel baby movements at 13 weeks, there is a little more time for this. In the coming days, you will feel the kicks and punches he throws as his muscles and bones develop, but not now.
Sense Organs and Developmental Characteristics in 13 Weeks Baby
As the nerve cells of the brain develop, the sense organs develop and your baby begins to feel many things. The formation of myelin sheath this week is one of the factors that will accelerate this process. Well, how developed are your baby’s sense organs in the 13th week of pregnancy, let’s examine it together.
Eye and Sight
From the time your baby entered the fetus form to this time, his head was larger than his body. However, his face is also smaller compared to his body. Although this is a bit confusing, it will reach normal sizes as the bones develop and facial features become more pronounced.
The progress of the eyes towards the middle of the face continues this week as well. But it is not possible to talk about the sense of sight yet.
Ear and Hearing
We can say that the inner and outer ears are formed within the 13th week of pregnancy. As the ear grows, it continues to take the shape it should be. So after a short while, your baby will be able to hear your voice.
Skin and the Sense of Touch
We can say that the sense of touch is your baby’s first developing sense. Because when you touch your belly, it feels it and can pull back. Now this week, the soles of the feet also have a sense of touch.
The lanugo feathers begin to appear, which will serve to keep him warm. These feathers are necessary because the baby does not have a layer of fat under the skin to warm it and insulate it.
Tongue and Taste
The sense of taste begins to develop as of this week. Thus, the 13-week-old baby can taste the lactic acid, citric acid, urea, protein, and similar substances in the amniotic fluid. It also continues to develop in reflexes such as sucking and swallowing. You can even see your baby sucking his thumb under the supervision of a doctor.
Nose and sense of smell
Along with the sense of taste, the sense of smell also develops. Thus, while tasting the liquid he swallowed, he will slowly smell it.
Mom at 13 Weeks Pregnancy
At the 13th week of pregnancy, you are at the beginning of the period when the baby is growing rapidly and as a result, it is clear that you are physically pregnant. It is not surprising that you experience a spiritual change as well as a physical change. We have investigated the changes you will experience during this period as a 13-week pregnant.
Your belly needs to grow in order for your relatives to understand that you are pregnant. However, there is of course weight gain. Gaining extra weight doesn’t mean your baby will grow healthier and faster. For this reason, as a mother at 13 weeks of pregnancy, instead of feeding for two, you should consume foods that can be beneficial for both you and your baby in a balanced and sufficient amount. Thus, you can keep weight gain under control.
Growth of the uterus and abdomen:
The uterus has grown quite a bit now and it can no longer fit in its position. For this reason, the uterus no longer only grows inside the abdomen, but also outward. This causes your tummy to become prominent. Since the uterus no longer presses on the bladder as much as before, the problem of frequent urination will decrease a little for now.
Formation of cracks:
As your body undergoes changes, small cracks will begin to form. On top of that, if you gain more weight faster than expected, these cracks form in a deeper and wider area. For this reason, you should be very careful about your diet.
Breast tenderness and first milk formation:
The sensitivity that started in the previous weeks continues this week. A fluid called “colostrum” begins to form in your breasts. This liquid is full of nutrients and it is the first milk you will feed your baby.
It is normal to have discharge throughout your pregnancy. The reason for this discharge is the increase in estrogen hormone and increased blood circulation in the pelvic region. Of course, this reaction of the body to pregnancy also has a purpose. Did you know that thanks to this discharge, the birth canals are protected from infection and the number of healthy bacteria is balanced?
One of the most curious subjects of pregnancy is sexuality. With the effect of increased blood circulation, it is normal for the expectant mother to increase her libido. You can talk to your doctor about this and get healthy information. However, experts are of the opinion that if there is no dangerous situation, the sexuality between couples can continue.
Spotting on the skin:
Skin problems that started earlier may continue this week. A skin problem called “Pregnancy Mask (Chloasma)”, which causes dark spots on your face or in different parts of your body can be seen. This is temporary and generally disappears after delivery. It will be more beneficial to consult your doctor about your different skin problems.
Tips to Minimize Annoying Pregnancy Symptoms!
Those who have been pregnant before say that the best times of pregnancy begin as of the 13th week. You are at the beginning of the time when morning sickness is over, your belly is growing and you feel pregnant. However, both physical and hormonal changes can cause some problems. We’ve compiled some easy-to-use and comforting tips for you to minimize the uncomfortable pregnancy symptoms.
- Gum bleeding may continue this week. You will feel relaxed when you brush your teeth frequently. It is recommended for your health to use organic, fluoride-free kinds of toothpaste.
- You should continue to drink plenty of water. This will help both the regular functioning of the digestive system and the removal of edema from the body.
- You should continue to use iron supplements regularly. This can be with the help of medicine you use with the advice of a doctor for blood circulation or with the help of iron-rich foods.
- Be sure to take care of your diet. The foods you consume should be adequate and balanced for you and your baby. You should definitely add protein and calcium-rich foods to your diet. In addition, thanks to foods containing magnesium, cramps will also decrease.
- You should continue to eat fiber. E.g; Instead of drinking orange juice, it would be better for you to consume a whole orange in terms of fiber.
- Starting this week, your baby will grow faster. For this reason, you should pay attention to your weight gain. You should not pay attention to the common sayings of “now you have to feed for 2 people”. Because a lot of weight gain does not mean that the baby will be healthier. The important thing is to consume the necessary nutrients in the right amount and in a balanced way.
- Weight gain brings with it the formation of stretch marks. For this, in addition to staying away from sudden weight gain, you can do the following:
- In order to prevent edema that may occur, you should consume plenty of water and fluids, as well as foods with high antioxidant value.
- You should be careful about adding low-fat and high-protein foods to your diet.
- Since the sun’s rays also cause the formation of cracks, you will not have such a problem if the pregnancy has come to the winter months. However, if you are having a pregnancy during the summer period, you should pay attention to the hours you go out to the sun.
- Continuing regular exercises with a stable weight gain is one of the factors that will prevent the formation of stretch marks.
How Much Weight Should You Gain?
Your baby has now entered the rapid growth phase. For this reason, your weight gain rate will also increase. As such, the less weight you gain in the first 3 months, the more comfortable you will be in the following months, and you can end your pregnancy with less weight.
11-12 kilos you need to gain during pregnancy. Excess weight gain does not mean that the baby will be healthier. Therefore, the baby will be born healthy when you eat adequate and balanced nutrition instead of a two-person diet. If you have questions about how much weight will be gained in 13 weeks of pregnancy, it would be appropriate to gain 2.5-3 kilos until this week.
You are in the period when your baby enters a rapid development process. Considering the 3 months you have left behind, your baby has grown and developed quite a lot. However, the next development will be even faster. In addition, you need to be more careful if you think that your baby is connected to you with the umbilical cord and takes advantage of your stores and food. We have researched a few tips about nutrition at 13 weeks pregnant for you.
- Do not add protein-rich foods to your daily diet. We know that you have taken care of this in the last 3 months, but now you need to be more meticulous. You can learn how much you need to consume daily from your doctor and adjust your meals accordingly. Foods such as lean meat, eggs, and dairy products, nuts, and kidney beans are rich in protein. Fish, on the other hand, is a type of food that you should consume at least once a week, as it is rich in both protein and omega 3.
- Iron is very important during pregnancy. If you have a problem such as iron deficiency before pregnancy, it will be recommended by your doctor to take iron supplements. The importance of iron will emerge if we consider that you are growing a new creature in your body and that a lot of blood is needed for this. Although lean red meat is rich in iron, you can also consume green plants such as spinach or legumes if you are vegetarian.
- Getting enough calcium for your baby’s bone and teeth formation is extremely important and necessary. If you do not get enough calcium, your baby will use the calcium stores in your body. This is not good for your health. You can get the necessary calcium by consuming 4 servings of dairy products daily.
- You should definitely stay away from caffeine. Because, according to experts, caffeine passes to the baby through the placenta and causes low birth weight. For this reason, 1 glass of Turkish coffee / Espresso per day will be enough for you. You should avoid too much.
Pregnancy doesn’t mean you are completely inactive. You should act whenever possible. Your tummy has just started to appear, so this doesn’t prevent you for now. For this reason, 13 weeks of pregnancy exercises are very useful for controlling weight gain and strengthening your muscles. These exercises are; It could be brisk walking or group sports like pregnancy yoga and pilates.
If you wish, you can read our article on “Exercise Movements During Pregnancy”: https://bettermom.net/exercise-during-pregnancy/
13 Weeks Pregnancy Checklist
- If you haven’t done it yet, it’s a good time for you to have the double test consisting of ultrasound and blood analysis.
- Now you can start preparing for birth and postpartum. If you have concerns, you can attend the courses organized for them. Thanks to these courses with many mothers, you will see that you are not alone and you will relax.
- The 13th week of pregnancy is when your tummy is now starting to become prominent. You may have worn maternity clothes before, but after that, you can shop for comfortable and loose clothes that will not bore your stomach.
- Week-by-Week Pregnancy: 1st and 2nd Weeks
- Week-by-Week Pregnancy: 3rd Week
- Week-by-Week Pregnancy: 4th Week
- Week-by-Week Pregnancy: 5th Week
- Week-by-Week Pregnancy: 6th Week
- Week-by-Week Pregnancy: 7th Week
- Week-by-Week Pregnancy: 8th Week
- Week-by-Week Pregnancy: 9th Week
- Week-by-Week Pregnancy: 10th Week
- Week-by-Week Pregnancy: 11th Week
- Week-by-Week Pregnancy: 12th Week