Pregnancy trimesters - What is important at each stage?

The journey of pregnancy is a wonderful time, full of changes for both the baby and the mother. Each trimester brings its own challenges and joys, so it is important to know what is happening each week and how to prepare for what is to come.

First Trimester (1–12 weeks)

Baby development:

• 1–4 weeks: The baby begins to form and grow. It is very small – just a few millimeters in size. During this period, the most important organs, such as the heart, brain, and spine, are developing. Although there are no visible external changes yet, the baby is growing rapidly.
• 5–8 weeks: The baby's heart begins to beat, and fingers and nails are forming. The baby is still very small, but its shapes are becoming clearer.
• 9–12 weeks: The baby's face begins to form, and the outlines of the nose, eyes, and ears start to appear. The baby begins to move, but these movements are not yet felt.

Changes in the mother's body:

• The first trimester can be accompanied by various unpleasant symptoms – nausea, fatigue, breast tenderness. This is completely natural, as the body begins to adapt to pregnancy. It is important to allow yourself to rest and take care of yourself.
• Most women start to feel that their belly is slightly swollen, but it is not yet large.
• You need to drink plenty of water and eat a balanced diet to maintain good health.

Experts advise:

• The first trimester is a period when it is very important to consult a doctor about the first pregnancy tests. Check the level of folic acid in your body, as it helps prevent fetal nervous system defects.
• Try to avoid stress and intense physical exertion, as the body undergoes many hormonal changes.

Second Trimester (13–26 weeks)

Baby development:

• 13–16 weeks: The baby begins to grow and its movement develops, but the mother does not feel it yet. The skin and muscles are developing. The baby now resembles a small human, and its body proportions are starting to become balanced.
• 17–20 weeks: The baby begins to move more actively, so the mother may start to feel the first movements. At this time, the baby's heart and lungs are already functioning.
• 21–26 weeks: The baby begins to grow rapidly and gains more body fat, which helps it stay warm and protect against external influences. The mother may notice that her belly starts to grow more visibly, and the baby's movements become increasingly active.

Changes in the mother's body:

• The second trimester is a happy period, as many unpleasant pregnancy symptoms, such as nausea, pass, and energy levels begin to rise. Often at this time, the mother feels less fatigue and can enjoy the pregnancy.
• The belly is growing, but most women can still feel comfortable and move actively.
  

Experts advise:

• Perform an ultrasound (20–24 weeks) to check the baby's development, fetal heartbeat, and other important indicators.
• During this period, it is important to take time for your psychological and emotional state. Take care of yourself and allow yourself to relax.

Third Trimester (27–40 weeks)

Baby development:

• 27–32 weeks: The baby is growing rapidly and is starting to gain more body fat. Its movements become more intense and frequent. The baby begins to prepare for birth – it lowers its head down, getting ready for delivery.
• 33–36 weeks: The baby's body size reaches impressive dimensions. The closer to childbirth, the less space will be left in the belly, so discomfort and pressure in the abdomen may occur.
• 37–40 weeks: The baby is fully developed and ready to be born. It may still change position a bit, but it is already prepared to meet the world.

Changes in the mother's body:

• The third trimester is often the hardest – the belly becomes large, and various symptoms may arise, such as back pain, shortness of breath, and swelling of the legs.
  
• More attention needs to be paid to rest and preparation for childbirth.

Experts advise:

• At this time, it is recommended to start preparing for childbirth – arrange with your doctor about the birth plan, decide where you will give birth, consider options for pain management.
• Don't forget to prepare the baby essentials – take care of necessary baby items (bedding, diapers, blankets, clothes) so that you can be ready quickly and smoothly.

The journey of pregnancy is filled with wonderful and challenging moments. Each trimester brings important stages of the baby's development and changes in the mother's body. By observing these changes and taking proper care of yourself, you can welcome your little one prepared and strong. Always consult with your doctor and monitor your pregnancy progress – this will help ensure a healthy and safe arrival of your baby into the world.