Week-by-Week Pregnancy

Week 8: Movement and Facial Development in the Baby

In week 8 of pregnancy, your baby is approximately 15 millimeters long. The first body movements begin this week, although the expectant mother cannot yet feel them. Facial features continue to develop, and your baby may make opening and closing movements with its mouth. The baby's skeletal structures also become more defined this week.

Week 9: Facial and Organ Development

This week, your baby's facial structure develops rapidly. The lips, eyes, and nose become more defined, while the intestines move toward the abdominal cavity. Your baby's length reaches approximately 2-3 centimeters. Expectant mothers may experience symptoms such as breast fullness, heartburn, and indigestion during this period.

Week 10: Kidney Function and Emotional Changes

In week 10 of pregnancy, your baby's kidneys begin producing urine. This urine mixes with the amniotic fluid, and your baby swallows this fluid, putting its digestive system to work. Nausea and fatigue symptoms in expectant mothers may begin to ease from this week onward. However, emotional fluctuations may continue due to hormonal changes.

Weeks 11-20 Pregnancy Guide

The Second Trimester Week by Week

The second trimester of pregnancy is generally a more comfortable period for expectant mothers. During this process, the body has adapted to the pregnancy and the symptoms experienced in the early period ease. While the baby's development continues rapidly, it is of great importance for expectant mothers to go through this period in good health. Here are the developments between pregnancy weeks 11-20 and the points to pay attention to:

Week 11: Organ Development and Weight Gain

In week 11 of pregnancy, your baby's organ development is largely complete. This is one of the weeks in which the baby grows the fastest. The senses of smell, taste, and touch begin to develop, and the outer ear canal and eardrum form. From this point on, expectant mothers may gain an average of 450 grams per week, although this weight gain can vary depending on individual factors. Paying attention to a balanced diet is important for healthy weight gain.

Week 12: Baby's Movements and the Double Test

In week 12 of your pregnancy, all of your baby's organs have formed and it now begins to grow in volume. This week, you may observe that your baby frequently opens and closes its mouth. During an ultrasound, you may even see your baby hiccupping. At this stage, your baby may begin sucking its finger. The nuchal translucency measurement and blood tests (Double Test) performed between weeks 11-14 are important for assessing the risk of chromosomal disorders such as Down syndrome.

Week 13: The Growing Uterus and Gender Prediction

In week 13, your uterus continues to grow, and this growth can stretch the ligaments holding the uterus in place, causing groin pain. This pain is generally normal and related to the expansion of the uterus. Additionally, this week an estimate of your baby's sex may be possible on ultrasound, although a few more weeks may be needed for a definitive determination. For sex prediction, the angle of the genital tubercle is taken into account on ultrasound.

Week 14: The Start of the Second Trimester

Week 14 of pregnancy marks the beginning of the second trimester. This period is generally known as the time when expectant mothers feel their best. Early symptoms such as fatigue and nausea begin to disappear. Expectant mothers who have given birth before may feel their baby's movements toward the end of this week. However, those experiencing their first pregnancy should wait a few more weeks to feel the baby's movements.

Week 15: Baby's Movements and Lanugo

In week 15, you may begin to feel your uterus from the outside. When you place your hand on your abdomen, the uterus—felt like a soft ball—is where your baby is located. The baby's bone and muscle tissues develop rapidly from this week onward. Fine hairs called lanugo begin to cover your baby's skin and persist until around week 26. This week, the sex of male babies can be determined by seeing the testicles and penis on ultrasound.

Week 16: The Quadruple Test and Baby's Movements

In week 16, the Quadruple Test may be performed to assess the risk of Down syndrome and neural tube defects in your baby. This test is ideal between weeks 16-18. Also, this week your baby's fingernails and toenails begin to grow. Those who have given birth before may begin to feel the baby's movements. These movements will become more noticeable as the baby's bones develop and muscles strengthen.

Week 17: Calcium Intake and Baby's Development

In week 17, your baby's subcutaneous fat stores begin to increase rapidly. During this period, your baby's heart pumps approximately 30 liters of blood per day. The sucking, swallowing, and blinking reflexes also develop this week. Calcium storage in your baby's bones accelerates, so it is important to consume foods rich in calcium. Calcium obtained from natural foods is the healthiest option for your baby's development.

Week 18: Baby's Mobility and Skin Changes

In week 18, your baby's mobility increases and it frequently changes position within the uterus. Your baby's skin is still quite thin, and its blood vessel structures can be visible. This week, expectant mothers may notice skin changes such as chloasma (pregnancy mask). These spots generally disappear after delivery, but they can become permanent with sun exposure.

Week 19: Baby's Sleep Pattern and Positioning

In week 19, your baby's subcutaneous fat tissue continues to develop. Your baby takes on various positions within the uterus and typically moves into a head-down position around week 34. During these weeks, your baby's sleep and wake cycles begin to form. Also, in female babies, the uterus begins to develop during these weeks.

Week 20: The Halfway Point and the Linea Nigra

In week 20 of pregnancy, you have now passed the halfway point of your pregnancy. Your uterus has reached the level of your navel and will continue rising about one centimeter each week. This week, the midline running between your navel and pubic bone (linea nigra) may darken. This darkening generally disappears after delivery. During these weeks, your baby goes through sleep and wake periods similar to a newborn.

Weeks 31-40 Pregnancy Guide

The Third Trimester Week by Week

Week 31: Dreams and Baby's Movements

In week 31 of pregnancy, expectant mothers may have more frequent and vivid dreams. This stems from the hormonal changes brought on by pregnancy and changes in sleep patterns. Your baby's movements become quite noticeable during these weeks. Between weeks 30-32, because your baby has relatively more amniotic fluid, there is more room to move, which allows the movements to be felt more strongly. After week 32, as the baby's space narrows, the movements may change in character.

Week 32: Baby's Position and the Expectant Mother's Emotional State

Week 32 is one of the weeks in which your baby begins to settle into its birth position. The baby generally moves into a head-down position, which allows it to enter the birth canal in the best way. During these weeks, some expectant mothers may find the changes in their bodies unappealing. However, pregnancy is a natural process both physiologically and emotionally, and these feelings are temporary.

Week 33: Amniotic Fluid and Baby's Development

In week 33, the amount of amniotic fluid around your baby reaches its highest level and remains relatively stable until delivery. Amniotic fluid is a sterile fluid that protects your baby from the outside environment; your baby swallows this fluid, and it is absorbed through the lungs and skin. During these weeks, your baby's lungs prepare for breathing while the muscles continue to strengthen.

Week 34: Sexual Activity and Baby's Breathing Preparation

In week 34, some concerns about sexual intercourse during pregnancy may arise. In general, unless your doctor has indicated a specific concern, sexual intercourse is safe throughout pregnancy. Uterine contractions during orgasm do not harm the baby. From this week on, your baby's breathing movements increase, and these movements are a preparation for the breathing process after birth. These breathing movements are one of the most important signs indicating that your baby is healthy.

Week 35: Baby's Movements and Preparing for Birth

In week 35, it is important to pay attention to your baby's movements. Baby's movements are a critical indicator that the baby is healthy. A healthy baby uses its extra energy by moving and strengthens its muscles. Even if your baby were to be born at the end of this week, the chances of survival without needing an incubator are high.

Week 36: Epidural Anesthesia and Preparing for Birth

In week 36, you can discuss the option of epidural anesthesia with your doctor. Epidural anesthesia is a widely used method to ease labor pain and offers a comfortable birth experience for most expectant mothers. During this week, your baby's birth position is largely established, and preparations for delivery continue rapidly.

Week 37: Baby's Birth Position and Approaching Labor

In week 37, your baby is likely to descend in preparation for birth. Your baby's movements are now more pronounced, and as labor approaches, your baby's positioning changes. During these weeks, the movements your baby makes in your belly resemble the movements it will make after birth. Hiccupping, stretching, and finger-sucking are among the most commonly observed movements.

Week 38: Preparing for Labor

Week 38 is a period during which labor can occur at any time. The majority of expectant mothers give birth between this week and week 42. Meconium, your baby's first stool, begins to accumulate in the intestines and is expelled within the first 24 hours after birth. Your baby's birth weight can vary depending on genetic factors.

Week 39: Labor Is Approaching

In week 39, your likelihood of going into labor is quite high. Labor is a process that requires patience, and at the end of this patience, when you hold your baby in your arms, you will feel a great sense of accomplishment. During this week, it is important to monitor the signs of labor and follow your doctor's instructions. It will be helpful to have your hospital bag ready and to keep necessary phone numbers easily accessible.

Week 40: Expected Due Date

Week 40 is considered the final week of pregnancy. The likelihood of going into labor is quite high this week, although some expectant mothers may wait a few more weeks. It is important to continue with doctor check-ups without panicking and to be prepared for delivery. Once labor begins, following your doctor's guidance is essential for a safe birth process.

Week 41: Induction of Labor

If you have reached week 41 without going into labor, your doctor may recommend inducing labor. Since going past the due date can pose a risk for both you and your baby, medical intervention may be necessary in this situation. Inducing labor is generally preferred when the placenta begins losing its function or when the baby is at risk.