22 Weeks Pregnant: Baby’s Senses Are Developing Rapidly
Medically reviewed by
Maureen Kelly, RN — 20+ years in L&D, postpartum, NICU, and women’s health.
Reviewed against ACOG, AAP, and Mayo Clinic guidance. Meet Maureen →
Medical Disclaimer: This article is for informational purposes only and should not replace professional medical advice. Always consult with your healthcare provider about your individual pregnancy.
At 22 weeks pregnant, your baby is about the size of a papaya—roughly 11 inches long and weighing nearly 1 pound. Your baby’s senses are developing rapidly, and they can now feel touch, hear sounds, and even respond to light. You’re likely feeling regular kicks and movements, making your pregnancy feel increasingly real and connected.
Baby Development at 22 Weeks
Your baby measures about 11 inches from head to heel and weighs approximately 15 ounces. The sense of touch is now well-developed—your baby can feel their face, grab the umbilical cord, and explore their environment. The inner ear has developed enough for your baby to sense their position and movement (vestibular sense).
Your baby’s lips are becoming more distinct, the eyes have formed (though the iris still lacks pigment), and the pancreas is steadily developing. Lanugo (fine body hair) covers much of the body, helping regulate temperature. Your baby’s lungs are developing rapidly but aren’t yet mature enough to function outside the womb.
Your Body This Week
Your uterus has risen above your belly button. Many women experience the “pregnancy glow” from increased blood circulation. Your belly button may be starting to pop out as your abdomen stretches. Weight gain at this point is typically 12-17 pounds total.
Stretch marks may appear on your belly, breasts, hips, or thighs. While largely genetic, keeping skin moisturized helps with itching. See our pregnancy-safe skincare guide.
Common Symptoms at 22 Weeks
Braxton Hicks contractions: These practice contractions may become noticeable—irregular tightening that’s usually painless. They’re normal unless they become regular or painful.
Swollen ankles and feet: Mild edema is normal. Elevate your feet, stay hydrated, and avoid standing for long periods.
Increased vaginal discharge: Clear or milky white discharge (leukorrhea) is normal. Contact your doctor if it’s colored, foul-smelling, or accompanied by itching.
Backaches: Your growing belly shifts your center of gravity. Exercise, good posture, and supportive shoes help.
What to Do This Week
Track baby movements. Now that you’re feeling regular kicks, start paying attention to patterns. Formal kick counts begin in the third trimester, but awareness starts now.
Consider a glucose screening timeline. The gestational diabetes glucose test is typically done between weeks 24-28. Ask your provider about scheduling. See our gestational diabetes diet guide for prevention tips.
Stay active. Pregnancy-safe exercises support healthy weight gain and reduce discomfort. Swimming is especially beneficial for reducing joint stress.
Nutrition Spotlight: Fiber for Digestive Health
Constipation is common during pregnancy. Aim for 25-30 grams of fiber daily from whole grains, fruits, vegetables, and legumes. Pair with adequate water (8-10 glasses daily). Prunes, oatmeal, beans, and berries are excellent choices. Visit our pregnancy nutrition guide.
When to Call Your Doctor
- Vaginal bleeding
- Leaking fluid from the vagina
- Regular, painful contractions
- Severe headaches or vision changes
- Sudden severe swelling
- Fever over 100.4°F
- Decreased fetal movement
See our when to call your doctor guide.
Frequently Asked Questions
What are Braxton Hicks contractions?
Braxton Hicks are “practice” contractions that prepare your uterus for labor. They’re irregular, usually painless, and stop with rest or position change. Contact your provider if they become regular or painful.
Is my baby viable at 22 weeks?
While 22 weeks is at the edge of viability, babies born this early face significant challenges. Viability improves dramatically each week. By 24 weeks, survival rates increase substantially with NICU care.
Why is my belly button popping out?
As your uterus expands, it pushes your belly button outward. This is completely normal and it will return to normal after delivery.
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Key takeaways for the second trimester
- Energy typically returns. Many people feel their best during the second trimester.
- The anatomy scan (around weeks 18–22) is a comprehensive ultrasound that checks fetal organ development and confirms placenta position.
- Quickening — first felt fetal movement — typically begins between weeks 16 and 22, earlier in subsequent pregnancies.
- Glucose screening for gestational diabetes is usually scheduled between weeks 24 and 28.
- By 24 weeks, viability is reached with intensive NICU support; by 28 weeks, survival rates exceed 90% in well-equipped centers.
When to call your provider
Call your OB-GYN, midwife, or labor and delivery unit right away if you experience:
- Heavy vaginal bleeding (more than light spotting)
- Severe abdominal or pelvic pain
- A severe headache that doesn’t respond to acetaminophen
- Sudden facial, hand, or leg swelling
- Vision changes (spots, blurring, light sensitivity)
- Decreased fetal movement after 28 weeks (fewer than 10 movements in 2 hours during baby’s active period)
- Signs of preterm labor: regular contractions, pelvic pressure, low back pain, fluid leaking
- Fever over 100.4°F (38°C)
When in doubt, call. Your provider would always rather hear from you about a non-issue than miss something important.
Frequently asked questions about week 22
How big is the baby at 22 weeks pregnant?
At 22 weeks, your baby is roughly the size of a spaghetti squash (~10.9 inches, 15.2 oz). Size estimates vary from baby to baby and are based on standardized growth charts (ACOG, NICHD).
What symptoms are common at 22 weeks pregnant?
Common second-trimester symptoms include round ligament pain (sharp pulls in the lower belly), nasal congestion, mild leg cramps, increased appetite, and the first felt fetal movements. Many people report feeling their best in this trimester.
What prenatal appointments happen around 22 weeks?
The anatomy scan (detailed ultrasound checking fetal organ development) is performed around weeks 18–22.
When should I worry at 22 weeks pregnant?
Decreased fetal movement after you have started feeling consistent kicks, severe headache, vision changes, sudden swelling, severe abdominal pain, vaginal bleeding, leaking fluid, or signs of preterm labor (regular contractions before 37 weeks) warrant immediate evaluation.
Is what I’m feeling at 22 weeks normal?
Most of the symptoms experienced at 22 weeks are part of typical pregnancy and reflect your body’s adjustments. If anything feels alarming, severe, or unusual for you, contact your provider — trust your instincts.
Sources
- American College of Obstetricians and Gynecologists (ACOG). Your Pregnancy and Childbirth: Month to Month (current edition). acog.org
- American Academy of Pediatrics. Caring for Your Baby and Young Child (current edition).
- Mayo Clinic. Pregnancy week by week. mayoclinic.org
- National Institute of Child Health and Human Development (NICHD). Pregnancy and Pregnancy Loss research and guidance.