The third trimester is an exciting phase of your pregnancy, as your baby prepares for its arrival. Exciting changes and challenges await you in the coming weeks and months. From physical adjustments to the final preparations for birth – we'll tell you everything you need to know about what to expect in the last three months of your pregnancy.
Your baby will continue to grow and develop during the third trimester as it slowly settles into its final position for birth. At the same time, as an expectant mother, you may experience increased movement and possibly some challenges, such as heartburn or sleep problems, that can accompany this final stage of pregnancy.
Counting the weeks of pregnancy
How are the weeks of pregnancy counted? Your pregnancy lasts 40 weeks. The start of your pregnancy is considered to be the time of your last menstrual period. However, ovulation and fertilization usually occur two weeks later. Therefore, you weren't actually pregnant for the first two weeks of the count. The division of pregnancy weeks into the three trimesters is a rough guideline. In the blog articles on the 1st trimester, 2nd trimester, and 3rd trimester, we use the most common division.
First trimester: 0-12 weeks
Second trimester: 13-27 weeks
Third trimester: 28-40 weeks
Your baby's development in the 3rd trimester
After the first and second trimesters, the third trimester of pregnancy, which spans weeks 28 until birth, is a time of intense change for both baby and mother. During months 7, 8, and 9 of pregnancy, your baby's development progresses at a breathtaking pace, while you experience a host of physical and emotional changes.
All height and weight measurements described are averages, and deviations may occur. Your baby's exact size and developmental stage can be determined during an ultrasound scan. If you are unsure, always consult your doctor, nurse, or midwife.
Month 7: Sound & Touch
By the 7th month of pregnancy (28–32 weeks), the baby's development is already well advanced. It can now respond to external sounds and even to the mother's touch. The baby's internal organs are functioning properly, but the lungs are not yet fully developed, meaning the baby would still need support outside the womb. Its skin will become smoother as the lanugo hair that previously covered it gradually disappears. During this time, the expectant mother should pay special attention to her diet to ensure she receives sufficient nutrients for the baby's health and development. You may experience increased heartburn and difficulty breathing as the growing uterus presses on the diaphragm.
This month, the baby weighs about 1.1 kilograms and measures about 37 centimeters in length. Your baby is now about the size of a head of broccoli.
Month 8: Preparing for birth
The 8th month of pregnancy typically encompasses weeks 33 to 36. The baby continues its rapid growth. It has already reached a considerable birth weight and is beginning to turn into the birth position by orienting its head downward. The baby's movements become stronger and more noticeable. Many expectant mothers can feel their baby kicking and moving externally through their abdomen. While this time is marked by joyful anticipation, physical discomforts such as water retention and back pain can be challenging. Preparations for the birth and the arrival of the baby now intensify, and it is important to pay attention to your body's needs.
In the 8th month, your baby continues to grow and gain weight, reaching approximately 1.8 to 2.3 kilograms. He or she is now the size of a white cabbage.
Month 9: the last month
The 9th month of pregnancy typically spans from weeks 37 to 41. Your baby is now assuming the birth position, head down toward the birth canal. Their activity may decrease as space in the uterus becomes more limited and they prepare for the impending birth. As the baby continues to grow and develop during the 3rd trimester, the expectant mother experiences a multitude of physical and emotional changes. It is important to spend this period of pregnancy under medical supervision and to listen to your body's needs. Soon, the exciting journey of motherhood will culminate with the birth of your baby, and the joy of holding your newborn baby in your arms will make all the struggles and discomforts of the 3rd trimester worth it.
During this stage, the expectant mother may notice signs of labor, indicating the approaching due date. It's an exciting time as both the baby and the expectant mother await the arrival of the new family member. You can prepare for the upcoming birth by paying attention to possible signs of labor. These could include abdominal pain, discharge, or the so-called "nesting instinct," when you feel a strong urge to prepare your home for the baby.
In the ninth month, the baby reaches its final birth weight, which can range from 2.7 to 4.5 kilograms. It now assumes the birth position, with its head down toward the birth canal.
Good to know
During the third trimester of pregnancy, pay special attention to a balanced diet, plenty of rest, and regular checkups. The last three months are a time of anticipation and preparation. Your baby is almost ready to arrive, so take good care of yourself and look forward to the exciting journey of parenthood.
Common complaints in the 3rd trimester
The third trimester of pregnancy can be accompanied by various symptoms that are common for many expectant mothers. Here are some of the most common symptoms and how to cope:
back pain
Back pain is common during this stage of pregnancy. The added weight of the baby and hormonal changes can put strain on the lower back. The following may help relieve this discomfort:
- Lower back exercises: Gentle stretching exercises can help relax the muscles.
- Ergonomic posture: Make sure you maintain good posture when sitting and standing.
- Pregnancy pillows: These can reduce pressure on the back and ensure better sleep.
- Support belt: A special support belt for the period during and after pregnancy can relieve back and pelvic girdle pain.
Circulatory problems & dizziness
Circulatory problems and dizziness can occur in the third trimester as blood volume increases while blood pressure drops. Here are some measures to relieve these symptoms:
- Stand up slowly: Avoid sudden movements when standing up to avoid dizziness.
- Sufficient fluids: Drink enough water to keep your circulation stable.
- Take breaks: If you feel tired, give yourself short breaks.
insomnia
Sleep problems, such as difficulty falling asleep or waking up during the night, can occur in the third trimester. Our tips for better sleep:
- Regular sleep schedule: Maintain a consistent sleep-wake rhythm.
- Relaxation techniques: Try relaxation exercises or yoga before bed.
- Comfortable sleeping environment: Make sure your bedroom is quiet and comfortable.
Diarrhea
Diarrhea can also occur during the third trimester and is often due to hormonal changes or infections. Here are some tips:
- Stay hydrated: Drink plenty of fluids to avoid dehydration.
- High-fiber diet: Eat plenty of fiber-rich foods to regulate digestion.
- If diarrhea persists, consult your doctor to rule out more serious causes.
It's important to talk to your doctor about any discomfort you experience during the third trimester. They can offer personalized advice and treatment options to help manage these symptoms and make your pregnancy as comfortable as possible.
Self-test during pregnancy
Self-tests of urine or vaginal pH can help keep an eye on these key parameters. If you are unsure about the use and the results, always discuss them with a doctor!
The last weeks before birth: What should be considered in the 3rd trimester?
The third trimester is an exciting time as labor approaches. Here are some important tips and advice to keep in mind:
- Preparing for birth: Use the last few weeks to learn about the birth process and create a birth plan. Attend childbirth classes to prepare yourself mentally and physically.
- Physical activity: Gentle exercise like walking can boost circulation and prepare you for labor. Be careful not to overexert yourself.
- Nutrition: A balanced diet is crucial. Make sure you get enough nutrients and stay hydrated. If you experience nausea, talk to your doctor about possible solutions.
- Mood and emotions: Mood swings and occasional lows are normal. Seek support from friends and family or support groups if you feel overwhelmed.
- Preparing the nest: Create a cozy and safe environment for your baby. Set up the nursery and gather necessary baby items.
- Doctor's appointments: Schedule regular checkups and discuss any contractions or other symptoms with your doctor.
- Emergency plan: Create an emergency plan for the birth and keep important contact information handy.
- Relaxation: Find ways to relax, whether through breathing exercises, meditation, or other techniques.
The last few weeks before birth can be exciting and challenging. By following these tips and listening to your body, you can best prepare for your baby's impending arrival and enjoy this exciting time. Remember that every pregnancy is unique, so don't hesitate to ask your doctor for personalized advice if you have any concerns.
Always seek medical advice
Important note: This article contains only general information and should not be used for self-diagnosis or treatment. It is not a substitute for a consultation with a doctor.
When does the 3rd trimester begin?
Expectant mothers are considered to be in late pregnancy when the third trimester begins, i.e., from the 28th week of pregnancy. At this point, the physical changes and preparations for childbirth are already clearly noticeable.
The third trimester runs from the 28th week of pregnancy until delivery. Once you reach the 28th week, you are officially in the third trimester.
What is the best sleeping position in the third trimester?
When bathing in the third trimester, it's important to monitor the water temperature to ensure it's comfortably warm for you, but not too hot. Avoid staying in the tub for too long to avoid overheating. Be careful getting in and out of the tub to avoid falling.
If you're only four weeks away from giving birth, it's a good idea to pack your hospital bag, review your birth plan, and make sure you've made all the necessary preparations for your baby's arrival. Schedule regular checkups and discuss any signs of labor or other concerns with your doctor. It's also a great time to prepare mentally and emotionally for the upcoming birth.
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