30 Weeks Pregnant: Symptoms and Baby Development

At 30 weeks pregnant, you're well into the third trimester—just over seven months along if you're wondering 30 weeks pregnant in months. This stage marks a significant phase in both your journey and your baby’s development. The 30-week foetus size is now comparable to a large cabbage, measuring around 43 centimetres and weighing between 1.1 and 1.4 kilograms. You may start to feel breathless more often or experience itchy skin as your bump expands. Inside the womb, the 30 weeks pregnant development is remarkable—your baby’s brain is rapidly maturing, red blood cells are now produced in the bone marrow, and bones continue to strengthen. Curious about 30 weeks pregnant symptoms or 30 weeks in months pregnancy milestones? Read on to explore what to expect this week and how your body and baby are evolving. 

How Big Is a Baby at 30 Weeks Pregnant? 

At this point, your baby is about the size of a large zucchini. The 30-week foetus size is approximately 43 centimetres long and weighs between 1.1 and 1.4 kilograms. Key developments include: 

• The brain is undergoing rapid growth and maturing significantly. 

• Bone marrow is now the primary site for red blood cell production. 

• Bones continue to harden and strengthen. 

• Your baby might be growing a full head of hair. 

• Eyes are capable of following light, and the baby may respond to familiar sounds. 

These 30 weeks of pregnancy development milestones are critical as the baby prepares for life outside the womb. 

Your Body & Bump at 30 Weeks Pregnant 

At 30 weeks pregnant, your baby bump is steadily growing as your uterus expands to accommodate your developing baby. You might notice increased pressure on your bladder, causing more frequent trips to the bathroom, along with common symptoms like back pain, swelling, and occasional breathlessness. 

It’s important to prioritise rest and comfort during this time. Wearing supportive footwear, staying hydrated, and practising gentle exercises such as prenatal yoga or walking can help ease discomfort and keep you and your baby healthy. 

30 Weeks Pregnant: Your Symptoms 

As your pregnancy progresses into the third trimester, you may experience several common 30 weeks pregnant symptoms, including: 

• Itchy Skin: One of the more noticeable discomforts during this stage is itchy skin, particularly around the expanding belly. This “seventh-month itch” occurs because your skin is stretching rapidly to accommodate your baby’s growth. While itching is normal, it is important to avoid scratching as this can damage your skin and exacerbate irritation. Instead, applying a gentle, moisturizing lotion and massaging the area can provide soothing relief and help maintain skin elasticity.   

• Shortness of Breath: As your uterus enlarges, it exerts pressure on your diaphragm—the muscle that helps you breathe—reducing the space your lungs have to expand fully. This often leads to a feeling of breathlessness, especially during physical activity or when lying flat. Fortunately, as you approach the final weeks of pregnancy, your baby will drop lower into the pelvis, relieving some of this pressure and making breathing easier. To ease discomfort at night, consider sleeping in a semi-reclined position using pillows to support your upper body.   

• Frequent Urination: The growing baby also places increased pressure on your bladder, resulting in the need to urinate more often. This is a common symptom and can be particularly noticeable during the day and at night. While it may be inconvenient, staying well-hydrated remains important, so try to sip water regularly rather than avoiding fluids.   

• Fatigue and Sleep Disruption: By the third trimester, many expectant mothers experience increased fatigue. This can be caused by a combination of factors including hormonal changes, physical discomfort, and disrupted sleep due to frequent bathroom trips or difficulty finding a comfortable position. Leg cramps may also occur during the night, adding to restless sleep. Prioritizing rest and adopting relaxing bedtime routines can help improve sleep quality.   

• Braxton Hicks Contractions: You may begin to notice Braxton Hicks contractions—irregular, mild tightening sensations in your uterus. Often referred to as “practice contractions,” these are your body’s way of preparing for labour. They are usually painless and irregular, but if contractions become regular, intense, or accompanied by other symptoms, you should seek medical advice promptly. 

Monitoring these 30 weeks' symptoms of pregnancy can help ensure timely responses to anything unusual. 

30 Weeks Pregnant: Things to Consider 

• Ensure your car seat is correctly installed; consider professional help if needed 

• Pack your hospital bag and encourage your partner to do the same 

• Make a list of essential baby items like clothes, sleep space, and stroller 

• Practice relaxation techniques such as massage, music, or prenatal yoga 

• Consult your healthcare provider if you have any concerns or symptoms 

• Begin pelvic floor exercises to strengthen pelvic muscles 

• Consider attending antenatal classes for childbirth and postpartum preparation 

30 Weeks Pregnant: Questions for Your Healthcare Provider 

As you reach 30 weeks pregnant, it’s important to stay informed and prepared. Regular communication with your healthcare provider helps ensure both your health and your baby’s well-being. Here are some key questions you might consider asking during your appointments: 

• How is my baby’s growth and development progressing? 

• Are there any signs of preterm labour I should watch for? 

• What tests or screenings will I need in the coming weeks? 

• How can I manage common symptoms like swelling and back pain? 

• What is the best way to prepare for labour and delivery? 

• Are there any dietary or lifestyle changes I should make? 

• When should I start monitoring my baby’s movements regularly? 

• What are the signs that require immediate medical attention? 

30 Weeks Pregnant: Your Checklist 

Here are a few important to-dos for 30-week pregnant women: 

• Get plenty of calcium, iron, and protein to help your baby develop. Get week-by-week expert tips on pregnancy to keep track of your baby’s development & to ensure the well-being of both you & your baby during the entire nine-month journey! 

• Massage your itching belly with lotion; scratching will only make it worse 

• Take a childbirth class and practice the techniques you learn. Here are some tips to find an ideal birthing class for both you & your partner to learn & understand about childbirth. 

• Sign up for weekly pregnancy tips. 

• Start packing your hospital bag with essentials for yourself and your baby. 

• Monitor foetal movements and inform your doctor of any noticeable changes. 

• Schedule your next prenatal appointment and discuss your birth plan. 

• Plan postpartum support – organise help for after delivery if needed. 

• Practice breathing and relaxation techniques to prepare for labour.