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What Not to do in Pregnancy First Trimester?

Що не Можна Робити Вагітним в Першому Триместрі

The first trimester of pregnancy is the period when the foundations for the health and development of the unborn child are laid. This time plays a key role in the formation of the main systems of the fetus’s body, so it is important to be careful about normal daily activities and habits. The recommendations of doctors and specialists during this period often boil down to avoiding certain actions and habits that can negatively affect the health of both the mother and the unborn baby. Taking these recommendations into account helps to reduce the risks for the pregnant woman and the embryo, providing optimal conditions for their successful joint development.

Main risks and limitations during the first trimester of pregnancy

Pregnancy is a time when a woman’s body undergoes significant changes, and the first trimester is extremely important for the proper development of the fetus. It is during this period that important organs and systems of the unborn child are being laid, and even minor interventions can have long-term consequences. The main risks and limitations include the following:

Avoidance of bad habits

This includes smoking, alcohol, and drugs, which can lead to serious birth defects and complications in fetal development.

Medication management

Not all medications are safe during pregnancy. Even common over-the-counter medications or supplements can have a negative impact on fetal development, so it is important to discuss any medication with your doctor.

Caution with physical activity

Hard physical work and intense training can increase the risk of miscarriage. It is important to maintain moderate activity, but avoid overloading.

Attention to nutrition

Avoid raw or undercooked foods that may contain harmful bacteria and viruses. You should also limit the consumption of foods high in mercury, such as certain types of fish.

Avoiding stressful situations

Severe stress can negatively affect the health of the pregnant woman and the development of the fetus, so it is important to maintain a calm and healthy environment.

Nutrition and diet

A balanced diet during pregnancy not only contributes to the proper development of the fetus, but also supports the overall health of the mother. In the first trimester of pregnancy, it is important to pay special attention to diet, as this is the time when the main organs of the unborn child are being laid. Here are some key aspects to consider:

  1. Product diversity: Including a wide variety of fruits, vegetables, whole grains, proteins and dairy products in the diet provides essential nutrients.
  2. Folic acid: One of the most important supplements during pregnancy, which contributes to the proper development of the fetal nervous system. It is found in green leafy vegetables, nuts, legumes, and whole grain products.
  3. Proteins: Important for cell building and fetal growth. Sources of protein include meat, fish, eggs, legumes and nuts.
  4. Calcium and vitamin D: Necessary for the development of the baby’s bones and teeth. Can be found in dairy products, broccoli, fish.
  5. Iron: Important for the prevention of anemia and sufficient oxygen supply to both mother and fetus. Contained in red meat, poultry, fish, legumes, whole grains.
  6. Adequate water intake: Water is essential for maintaining hydration and preventing constipation.


Physical activity and sports

Physical activity during pregnancy can have significant benefits, but it is important to be cautious, especially in the first trimester. Adequate exercise can improve mood, reduce the risk of certain pregnancy complications, and ease the process of childbirth. However, not all sports are safe for pregnant women. Below are some recommendations for physical activity:

Light aerobics and walking

These are safe types of physical activity that help keep the cardiovascular system in good condition.

Yoga and Pilates

These types of exercises are generally recommended for pregnant women, but it is important to avoid intense postures and stress on the abdomen.


It is considered one of the best types of physical activity for pregnant women, as water reduces the load on the joints and spine.

Bicycle on a stationary trainer

A safe option for keeping fit, especially in cases where a regular bike can pose a risk to balance.

Avoidance of contact sports

Sports that involve physical contact or the risk of falling, such as soccer, basketball, horseback riding, should be avoided.


It is recommended to do light exercises regularly, but without overstrain and with rest breaks.

It is always important to consult your doctor before starting or changing your physical activity level during pregnancy, especially if you have any medical contraindications or complications.

Medical restrictions and medications

During pregnancy, especially in the first trimester, it is important to pay special attention to the use of medications and compliance with medical restrictions. During this period, the vital organs and systems of the unborn child are being formed, and even seemingly innocuous medications can have unpredictable consequences. Here are some key points to consider:

  1. Careful use of medications: Most medications during pregnancy should be taken only as prescribed by your doctor. Even common over-the-counter medications can be dangerous.
  2. Avoiding self-medication: Self-medication can lead to unpredictable reactions and complications, so it is important to avoid using medications without consulting a healthcare professional.
  3. Warnings against certain medications: Antibiotics, anti-inflammatory drugs, and other strong medications may be contraindicated. This also applies to some types of vitamins and supplements.
  4. The use of folic acid: Folic acid is one of the few drugs that is actively recommended for use during pregnancy to prevent defects in the development of the fetal nervous system.
  5. Regular medical examinations: They help to detect and prevent possible problems in time and to adjust treatment and care accordingly.

Bad habits

Bad habits during pregnancy have a significant impact on the health and development of the fetus. They can cause a number of complications and negatively affect the entire course of pregnancy. It is important to completely give up such habits, especially in the first trimester, when the foundation of the unborn child’s health is being laid. Here are some of the most common bad habits to avoid:

  1. Smoking: This is one of the most dangerous habits during pregnancy. Smoking increases the risk of miscarriage, premature birth, low birth weight, and respiratory problems in the baby.
  2. Alcohol consumption: Even small amounts of alcohol can have serious consequences, including fetal alcohol syndrome, which can cause birth defects and developmental disorders.
  3. Substance abuse: All drugs, including marijuana, cocaine, heroin, and others, can lead to serious complications in fetal development and maternal health.
  4. Passive smoking: Even indirect exposure to secondhand smoke can be harmful to a pregnant woman and her unborn child.
  5. Excessive consumption of caffeine: It is recommended that you limit your intake of caffeinated beverages, as high amounts of caffeine can increase the risk of miscarriage and other complications.

Travel and movement

Traveling during pregnancy, especially in the first trimester, requires extra planning and caution. Although pregnancy itself is not a contraindication to travel, there are certain aspects that should be considered to ensure the comfort and safety of the mother and unborn child:

  1. Consultation with a doctor: It is important to consult a doctor before any travel, especially if there are medical contraindications or risks.
  2. Comfort while traveling: Sitting for long periods of time in a car, airplane, or other vehicles can be uncomfortable. It is recommended to take regular breaks to warm up and change your posture.
  3. Avoid heavy flights: Long flights can increase the risk of venous thrombosis. It is important to wear compression garments and perform light leg exercises.
  4. Height warning: Altitude can affect blood oxygen levels, so you should avoid traveling to places with high altitudes.
  5. Vaccination and protection against infections: Before traveling to other countries, make sure you are vaccinated and protected against local infectious diseases.
  6. Health insurance: Make sure your health insurance covers pregnancy and childbirth if needed.


The first trimester of pregnancy is a fundamental period that requires special attention and care. From proper nutrition, avoidance of bad habits, cautious use of medications, to adequate physical activity and safe travel, every aspect is important for the health of the mother and the proper development of the unborn child. The main goal of these recommendations is to ensure that pregnancy is as comfortable and safe as possible. This is a period when a pregnant woman should be particularly attentive to her health, listening to her body and responding to its signals in a timely manner. Equally important is the support of your loved ones to help you through this wonderful but challenging period. Remember that every pregnancy is unique, and what is right for one woman may not be acceptable for another. Therefore, it is important to consult with your doctor on a regular basis and follow individualized recommendations. By maintaining a positive attitude and a responsible attitude to health, you can maximize the healthy development of your unborn child and your own well-being.

Frequently Asked Questions

What weight should not be lifted by pregnant women?

It is generally recommended to avoid lifting weights of more than 10-15 kg. It is important to monitor your health and avoid overexertion.

How can pregnant women not sleep?

In the second and third trimester of pregnancy, you should avoid sleeping on your back, as this can put additional pressure on the vein of coffee and disrupt blood circulation. The most recommended sleeping position is on your side.

Why should pregnant women not pet the cat?

The main reason is the risk of contracting toxoplasmosis, an infection that can be transmitted through cat feces. This infection can be dangerous for the fetus.

When does the belly start to grow?

The belly usually begins to grow noticeably around the 12th to 16th week of pregnancy, although this can vary depending on the individual woman and her physiology.

When does nausea start during pregnancy?

Nausea and vomiting, often known as morning sickness, usually starts between the 4th and 6th weeks of pregnancy and can last up to 12-14 weeks, although some women may experience these symptoms for longer.