Week 22 of Pregnancy
Learn about your baby's development and what to expect at 22 weeks pregnant.
Baby's Size This Week
Baby Development at Week 22
- ● At week 22, your baby is approximately 27.8 cm and weighs around 430g.
- ● The lungs are developing rapidly, producing surfactant — the substance that will allow the air sacs to inflate properly at birth.
- ● Your baby has distinct sleep and wake cycles and is becoming more active with kicks and rolls that you can feel more consistently.
- ● The lips, eyelids, and eyebrows are now clearly defined, and tiny tooth buds are forming beneath the gum line.
- ● The brain is growing rapidly, with neurons forming millions of new connections and the senses of touch and hearing becoming more refined.
- ● Your baby's grip reflex is developing — fingers can grasp and release, and the hands are often found near the face.
Your Body at Week 22
- ● At week 22, your growing belly may cause backaches and difficulty finding a comfortable sleeping position — a pregnancy pillow can help.
- ● Braxton Hicks contractions (mild, irregular practice contractions) may begin appearing in the second trimester; they are usually painless and irregular.
- ● Heartburn and indigestion are common as the growing uterus puts pressure on the stomach, pushing acid upward.
- ● Swelling in the feet and ankles (edema) may start to appear, especially after long periods of standing or at the end of the day.
- ● Increased vaginal discharge (leukorrhea) is normal at this stage; contact your provider if it has an unusual odor or color.
- ● You may notice stretch marks beginning to form on the abdomen, breasts, or thighs as the skin stretches to accommodate growth.
Week 22 Checklist
- ☐ Schedule or confirm your anatomy scan (20–22 week ultrasound) if not yet completed to check fetal growth and organ development.
- ☐ Begin researching glucose tolerance test requirements — the 1-hour glucose screening is typically scheduled between weeks 24–28.
- ☐ Start planning the nursery layout and researching essential baby gear such as a crib, stroller, and car seat.
- ☐ Look into childbirth education classes and prenatal breastfeeding courses — popular classes fill up quickly.
- ☐ Research cord blood banking options and discuss the decision with your partner and healthcare provider.
- ☐ Stay active with low-impact exercises like walking, swimming, or prenatal yoga to relieve backache and improve sleep.
Frequently Asked Questions
What should I expect at 22 weeks pregnant?
At 22 weeks pregnant, you are well into your second trimester. Your baby is about the size of a Papaya (27.8 cm) and is developing senses, lung tissue, and motor reflexes. You may feel regular kicks and rolls. Common symptoms include backache, heartburn, swelling, and Braxton Hicks contractions. Always consult your healthcare provider for personalized guidance.
How big is my baby at 22 weeks?
At week 22, your baby is approximately 27.8 cm in length and weighs around 430g — roughly the size of a Papaya. These measurements are averages based on WHO fetal growth charts; individual babies vary naturally in size.
Can my baby hear me at 22 weeks?
Yes. By week 22, your baby's inner ear structures are sufficiently developed to detect sounds. Your baby can hear your heartbeat, digestive sounds, and muffled external voices. Talking, reading aloud, or playing music may be soothing and can foster early bonding.
Is it normal to feel Braxton Hicks contractions at 22 weeks?
Yes, Braxton Hicks contractions — often described as tightening or hardening of the uterus — can begin as early as the second trimester. They are irregular, usually painless, and do not increase in frequency. If you experience regular, painful contractions before 37 weeks, contact your healthcare provider immediately.
What foods should I focus on at 22 weeks pregnant?
Focus on iron-rich foods (lean meats, beans, spinach) to support your expanding blood volume, calcium (dairy, fortified plant milks, leafy greens) for bone development, and omega-3 fatty acids (salmon, walnuts, flaxseed) for fetal brain growth. Continue taking your prenatal vitamin with folic acid and vitamin D.
Track Your Exact Pregnancy Week
Use our free Pregnancy Week Tracker to find out exactly how far along you are based on your last menstrual period or due date.
Track My Pregnancy →Sources
- ACOG
- WHO Fetal Growth Charts
- Mayo Clinic
Medical disclaimer: This content is for informational purposes only and is not intended as medical advice. Always consult a qualified healthcare provider for guidance specific to your pregnancy.