At 30 weeks, some babies make sleep movements that look like frowning or crying. This is usually a normal sign of brain, muscle, and facial development. Bleeding, fluid leaking, strong pain, or fewer movements are reasons to call your provider right away.
30 weeks pregnant is about 7 months. You are in month 7 of pregnancy and the third trimester.
Your baby at 30 weeks
Baby is about the size of a large cabbage
30 weeks: what is happening with baby
At 30 weeks, baby is very active. During sleep, facial movements may look like frowning, a wrinkled forehead, or even crying.
What is often happening this week
- The brain is developing quickly, and coordination is improving.
- The lungs continue to mature in preparation for breathing after birth.
- Baby may respond to sound, light, and touch.
- Movements are often strong, but they can feel different from day to day.
- Baby is gaining weight and filling out, and is about 15 inches long on average.
The cabbage comparison is just a simple way to picture size. Every baby grows at a different pace. If something about your baby's movements or your body feels unusual, a prompt check-in is a good idea.
Your body at 30 weeks
Your Body and Planning Time Off Work
At week 30, you are in the third trimester. Your baby is growing quickly, and you may notice more tiredness, back pain, heartburn, swelling in your feet and ankles, or trouble sleeping. Planning your time off work can help you rest and prepare for your baby's arrival.
Where to start
Many employers ask for a note from your provider about your pregnancy and due date. Some leave programs also require a medical certification form completed by your OB-GYN or midwife. Ask your provider's office how long it takes to complete these forms.
- Ask your provider when they can complete your leave paperwork.
- Talk with your HR department about your leave options and the deadlines for requesting leave.
- Check that your name, date of birth, and job details are correct on all forms.
Leave options in the US vary by employer and location. Options may include:
- Family and Medical Leave Act (FMLA): up to 12 weeks of unpaid, job-protected leave. Eligibility depends on how long you have worked for your employer, your hours, and the size of the company.
- State paid family or disability leave: some states offer paid leave for pregnancy and bonding with a new baby.
- Short-term disability: some employers or insurance plans pay part of your wages during pregnancy-related disability.
When to call your doctor
Common symptoms at 30 weeks
Feeling worn out is common as your body works hard to support your growing baby. Short rests, daytime naps when you can take them, and going to bed a little earlier may help.
Many people notice burning in the chest or throat this week, since the growing uterus pushes up on the stomach. Smaller meals, staying upright after eating, and avoiding late-night snacks may ease it.
Your baby takes up more space, so you may feel winded with stairs or activity. Slowing down, good posture, and taking breaks can make breathing feel more comfortable.
Sudden cramps in the calves, often at night, are common this stage. Gentle stretching before bed and staying well hydrated may help some people.
Mild swelling by the end of the day is frequent. Raising your feet, walking a little, and wearing supportive shoes may bring some relief.
Tightening of the belly that comes and goes is often Braxton Hicks contractions. Changing position, resting, or drinking water may help, and it is worth mentioning to your provider if they become regular or painful.
Your week 30 checklist
Tests and appointments
- Tdap vaccine. The Tdap vaccine is commonly offered between 27 and 36 weeks to help protect your baby from whooping cough in the first months of life.
- Growth ultrasound. Some providers schedule an ultrasound around this time to check your baby's growth and the amount of fluid around the baby if there is a medical reason to do so.
Questions about week 30
How many months is 30 weeks pregnant?
30 weeks pregnant is about 7 months. You are in month 7 of pregnancy and the third trimester.
What trimester is 30 weeks?
Week 30 is in the third trimester. The first trimester runs through week 13, the second from week 14 to 27 and the third from week 28 until birth.
What is happening with the baby at 30 weeks?
At 30 weeks, some babies make sleep movements that look like frowning or crying. This is usually a normal sign of brain, muscle, and facial development. Bleeding, fluid leaking, strong pain, or fewer movements are reasons to call your provider right away.
Is it normal to feel my baby move less at 30 weeks?
Babies move in patterns, and a change in how often you feel movement is worth calling your provider about. If you notice fewer movements than usual, call your provider or go to labor and delivery right away instead of waiting.
When should I ask my employer about leave?
Many people start planning around this stage. Asking your provider for a leave note and reviewing your employer's policies early gives you more time to plan the schedule and paperwork.
Why does my baby seem to frown or cry in ultrasound videos?
Facial movements like frowning or grimacing are normal sleep and practice movements. They are a sign of brain, muscle, and face development and are usually not a cause for concern.
Safe or not?
Guides for this stage
Learn more
- NIH: Pregnancy (NICHD)
- CDC: Pregnancy
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