Pregnancy Week by Week
22 Weeks Pregnant
At 22 weeks pregnant, your baby is the size of a papaya (~28 cm, 430 g). Hair, eyelashes and eyebrows are visible, and hearing is sharpening fast.
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This article is for general information and is not a substitute for professional medical advice. Always consult your pediatrician or doctor about your child.
Sources: WHO, CDC, AAP and NHS guidance. Recommendations differ between countries — for local advice see the NHS or ACOG.
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At a Glance: Week 22
- Trimester: Second trimester — you are firmly in the middle stretch of pregnancy
- Baby's size: About the size of a papaya — roughly 28 cm (11 inches) crown to heel and approximately 430 g (15.2 oz)
- Key milestone: Hair, eyelashes, and eyebrows are now visible. The auditory system is becoming functional, and your baby is starting to recognize the sound of your voice. Body proportions are beginning to look more like a newborn, with fat layers slowly accumulating beneath the skin.
Your Baby's Development This Week
By 22 weeks, your baby looks remarkably like a miniature newborn — proportionally still small for their length, with translucent reddish skin, but the features are recognizably theirs. All major organ systems are formed; the focus has shifted to maturation, growth, and refinement of function.
- Hair, lashes, and brows: Eyebrows and eyelashes are now distinct. Scalp hair is visible, although still pale and fine.
- Hearing: The inner ear is functional. Your baby reliably perceives your heartbeat, blood flow, and voice, and is beginning to detect louder external sounds.
- Touch and grasp: Your baby is exploring — touching their face, grasping the umbilical cord, sucking thumbs and fingers. Tactile sensitivity is increasing.
- Lungs: Branching of the bronchial tree continues. Surfactant production is not yet meaningful (that ramps up after week 24), so a baby born at 22 weeks would have extreme difficulty with breathing.
- Skin and fat: Skin is still wrinkled because subcutaneous fat is only just beginning to deposit. Lanugo (fine downy hair) and vernix caseosa (waxy coating) cover the body.
- Brain: Cortical folds (sulci and gyri) deepen. Synapses are forming at extraordinary speed.
- Movement: Kicks, rolls, hiccups, and stretches are frequent. Many parents notice patterns of activity and rest forming.
Your Body and Symptoms This Week
At 22 weeks the top of your uterus sits about 2 cm above the belly button, and fundal height in centimeters now roughly tracks the number of weeks pregnant (give or take 2 cm). Most people are obviously pregnant by now, and the bump may feel like it is growing quickly.
- Braxton-Hicks contractions: Irregular, painless tightenings of the uterus may begin around now. They are usually felt as a brief firming across the belly and ease with rest or hydration.
- Round-ligament pain: Sharp, brief stabs in the lower abdomen or groin when you change position are caused by stretching ligaments that support the uterus.
- Swelling: Mild swelling (edema) in the feet and ankles becomes common as blood volume continues to climb (it peaks at about 50% above pre-pregnancy levels).
- Leg cramps: Often strike at night. Hydration, gentle calf stretches before bed, and adequate magnesium and calcium intake can help.
- Hair and skin changes: Hair feels thicker; skin may glow (or break out). The linea nigra may be visible, and stretch marks may appear on belly, hips, and breasts.
- Increased appetite: Many people feel reliably hungry in the second trimester as nausea fades and growth accelerates.
- Stronger fetal movements: Flutters often turn into clearer kicks and rolls that you cannot mistake for digestion.
Nutrition: What to Eat and Avoid This Week
Your baby is roughly doubling in weight every four weeks during this stretch. Iron and calcium needs continue to climb — the Institute of Medicine recommends about 27 mg of iron and 1,000 mg of calcium daily during pregnancy. Most prenatal vitamins cover iron but only partial calcium — make up the difference with food.
Focus on:
- Iron with vitamin C: Lean red meat, lentils, fortified cereals, or spinach paired with citrus, peppers, or strawberries dramatically improves absorption.
- Calcium-rich foods: Yogurt, cheese, fortified plant milks, calcium-set tofu, almonds, and leafy greens.
- Omega-3 DHA: 8 to 12 oz per week of low-mercury fish (salmon, sardines, anchovies, trout) supports brain and eye development. An algal DHA supplement is a safe alternative.
- Watch added sugar: Gestational diabetes screening is around the corner (24 to 28 weeks). Lower-glycemic carbs — whole grains, beans, fruit with skin — keep blood sugar steadier.
- Fiber and fluids: Constipation worsens this trimester. Aim for 25 to 30 g of fiber and at least 2 to 2.5 L of fluid daily.
Continue to avoid: alcohol, high-mercury fish (shark, swordfish, king mackerel, tilefish), raw or undercooked animal foods, unpasteurized dairy, and unheated deli meats. Keep caffeine under 200 mg/day per ACOG guidance.
Movement and Exercise
ACOG recommends about 150 minutes per week of moderate-intensity activity for uncomplicated pregnancies. Regular movement at 22 weeks reduces gestational diabetes risk, eases back pain, supports better sleep, and is associated with shorter labors and easier recovery.
Best choices this week: walking, swimming (a favorite because water offloads back pressure), stationary cycling, prenatal yoga, modified strength training, and daily pelvic floor exercises (Kegels — three sets of 10 daily).
Posture matters more now: the bump is pulling your center of gravity forward and increasing the lumbar curve. Engage your core gently when lifting, avoid arching the lower back, and consider a maternity support band if you are on your feet for long periods.
Modify or avoid: exercises that involve lying flat on your back for more than a few minutes (use an incline), holding your breath against resistance, deep twists, contact sports, hot yoga, and any activity with a meaningful fall risk. Stop and rest if you feel dizzy, breathless, cramping, or notice bleeding or fluid loss.
Mental and Emotional Wellbeing
Mid-pregnancy is often described as the most comfortable stretch — nausea is usually gone, the third-trimester heaviness has not yet set in, and movement makes the baby feel more real. That said, anxiety often creeps in around now: about viability, about birth, about how life will change.
Sleep: Comfort starts to slip and bathroom trips multiply. Side sleeping with a pillow between the knees and one supporting the bump can help.
Mood check: Prenatal depression and anxiety affect roughly 1 in 5 pregnant people and are treatable. Reach out to your provider if you feel persistently down, lose interest in things you usually enjoy, or worry constantly.
Partner involvement: External kicks often become detectable to a hand on the belly between 22 and 26 weeks. Invite your partner to feel for movement in the evening when babies are often most active.
Common Concerns and When to Call Your Doctor
Contact your provider promptly if you experience:
- Vaginal bleeding (any amount)
- Sudden gush or persistent leak of fluid
- Severe or persistent abdominal pain
- Regular tightening (more than 4 per hour) — possible preterm labor
- Pelvic pressure, low-back ache in waves, or menstrual-like cramping
- Severe headache, vision changes, or sudden swelling of hands and face (preeclampsia signs, although uncommon this early)
- Painful urination, lower-back pain with fever (possible UTI or kidney infection)
- One-sided leg swelling, pain, or redness (possible blood clot)
- A meaningful drop in movement once you have established a consistent daily pattern
Tests and Appointments This Week
You'll likely have a routine prenatal visit around now with weight, blood pressure, urine dip, fundal height, and Doppler check of the fetal heartbeat. If your anatomy scan was deferred or repeated, it may happen at this visit. Your provider may discuss the upcoming glucose tolerance test (typically scheduled between 24 and 28 weeks) and review preterm-labor warning signs as you approach the viability threshold. If you have a short cervix history or other risk factors, a cervical length scan may be ordered. Use this visit to ask about childbirth classes, hospital tours, and your provider's coverage schedule.
Tips for Week 22
- Start talking and reading to your baby. The auditory system is now functional — familiar voices in the third trimester help with newborn recognition and bonding.
- Set up your sleep environment. Side sleeping with a pregnancy pillow, a cool dark room, and a nightlight for bathroom trips will pay dividends as the bump grows.
- Memorize preterm-labor warning signs. Save your provider's number where you can find it quickly.
- Pre-book a childbirth class. In-person and virtual classes often fill 6 to 12 weeks in advance.
- Hydrate, hydrate, hydrate. Many Braxton-Hicks episodes ease with a tall glass of water and 15 minutes of rest.
Preparing for What's Next
The third trimester begins at 28 weeks — only six weeks away. Now is the time to start practical preparation without rushing: research pediatricians, draft a baby registry, plan parental leave with your employer, and look into childbirth and breastfeeding classes. If you are planning a hospital birth, ask about tours and pre-registration. Consider drafting an early version of your birth preferences — not as a rigid script, but as a way to clarify what matters to you and start conversations with your provider.
Frequently Asked Questions About Week 22
Can my baby really hear my voice at 22 weeks pregnant?
Yes. By 22 weeks the inner-ear structures (cochlea, ossicles, and auditory nerve pathways) are sufficiently developed for your baby to register sound. Low-frequency sounds — your heartbeat, blood flow, voice resonance through the body, and household rumbles — come through most clearly. Higher-frequency external sounds become more detectable over the next few weeks. Singing, reading, and conversation are a meaningful form of bonding, and newborn studies show babies recognize voices and melodies heard in late pregnancy.
Why am I suddenly feeling tightening in my belly at 22 weeks?
These are most often Braxton-Hicks contractions — irregular, painless, "practice" tightenings of the uterus that can start around 20 to 24 weeks. They typically last 30 to 60 seconds, don't follow a pattern, and ease with rest, hydration, or changing position. Call your provider if tightening becomes regular (more than 4 per hour), painful, accompanied by bleeding or fluid leakage, or comes with low-back pain or pelvic pressure that won't ease — those can be signs of preterm labor.
How many kicks should I be feeling at 22 weeks?
Formal kick counts only begin at 28 weeks, when fetal activity becomes consistent and predictable. At 22 weeks, movements are still irregular — you may feel a flurry of activity one day and almost nothing the next. Babies sleep in 20- to 40-minute cycles, and many kicks still don't reach the abdominal wall hard enough to be felt. Focus on noticing patterns rather than counting. Call your provider if you have established a clear daily pattern of movement and then notice a meaningful decrease.
Is it normal to have round-ligament pain at 22 weeks pregnant?
Yes, round-ligament pain is one of the most common second-trimester complaints. As your uterus grows, the round ligaments that support it stretch and can cause sharp, brief stabbing pain in the lower abdomen or groin — often when you shift position, stand up quickly, sneeze, or cough. The pain is usually fleeting and harmless. Slow position changes, supportive belly bands, warm compresses, and prenatal yoga can help. Call your provider if pain is severe, constant, one-sided with fever, or accompanied by bleeding.
Why is my hair growing so much faster during pregnancy?
Pregnancy hormones — particularly estrogen — extend the active growth (anagen) phase of the hair cycle, so fewer hairs are shedding while new ones keep growing. The result is thicker, fuller hair that often peaks in the second trimester. After delivery, when estrogen drops, the postponed shedding catches up over a few months (postpartum hair loss). It feels alarming but is normal and self-limited.
Is it safe to sleep on my back at 22 weeks pregnant?
Brief moments on your back are fine, but after about 20 weeks the growing uterus can compress the inferior vena cava when you lie flat for long periods, reducing blood return to the heart. Prolonged back-sleeping may cause dizziness and lower blood flow to the placenta. Side sleeping (either side) is preferred. If you wake up on your back, simply roll to your side — there is no harm in occasional shifts.
When will my partner be able to feel the baby kick?
Many partners feel a kick from the outside between 22 and 26 weeks, although it varies with placenta position and baby's activity. An anterior placenta (in the front of the uterus) cushions movements and can delay external kicks by several weeks. Try having your partner place a hand on your belly in the evening when babies are often most active, after you have had something to eat or drink.
What does the linea nigra mean and will it go away?
The linea nigra is a vertical line of darker pigmentation that often appears on the abdomen during pregnancy, becoming more visible around 20 to 22 weeks. It is caused by increased melanocyte-stimulating hormone activity. It almost always fades over weeks to months after delivery, though it may not disappear completely. It is harmless and needs no treatment.
Should I worry about preterm labor at 22 weeks?
Preterm labor is uncommon at 22 weeks but worth recognizing. Warning signs include regular tightening (more than 4 per hour), low backache that comes and goes in waves, pelvic pressure, menstrual-like cramping, increased or watery vaginal discharge, and any bleeding or fluid leakage. Babies born before 24 weeks have very limited survival in modern NICUs, which is why early recognition matters. Call your provider immediately if you notice these symptoms — early evaluation can sometimes pause labor with medication.
How much weight should I have gained by 22 weeks?
For a person with a normal pre-pregnancy BMI, the Institute of Medicine recommends about 11 to 16 kg (25 to 35 lbs) total, with roughly 5 to 7 kg (12 to 16 lbs) by week 22. Recommendations differ for underweight, overweight, obese, and twin pregnancies. Steady gain matters more than hitting an exact number each week. Your provider will tailor a target to your individual situation.
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