How many months is 23 weeks pregnant?

At 23 weeks, you are officially in your sixth month of pregnancy. Your baby is roughly the size of a large grapefruit or an aubergine. They measure about 28.9 centimetres from crown to heel and weigh approximately 500 grams (just over a pound). The baby's proportions are now very similar to a newborn, but they are still very lean. Over the coming weeks, they will rapidly pack on essential fat stores. A critical milestone is occurring in the baby's respiratory system. ACOG notes that the lungs are beginning to produce a vital substance called surfactant. Surfactant is a complex mixture of lipids and proteins that coats the inside of the tiny air sacs (alveoli) in the lungs. It prevents these sacs from collapsing and sticking together when the baby exhales, which is absolutely essential for independent breathing after birth. The baby's hearing is becoming incredibly sharp. The bones in their inner ear have hardened completely. They can clearly hear the rhythmic whoosh of your blood, the rumbling of your stomach, and the steady beat of your heart. Crucially, they can also hear external sounds, particularly lower-frequency noises like your voice and your partner's voice. Sudden, loud noises might even cause them to jump or startle! The baby's skin is still slightly translucent and appears red or pink due to the visible blood vessels beneath the surface. However, it is growing faster than the underlying fat, giving the baby a distinctly wrinkled appearance. This will smooth out as they gain weight in the third trimester. The lanugo (fine body hair) is darkening, and their fingernails are almost fully formed. The baby's brain is developing rapidly, forming billions of complex neural connections. These connections control everything from their heartbeat and breathing practice to their increasingly coordinated movements. They are highly active, and you are likely feeling a wide variety of kicks, punches, and rolls throughout the day. Finally, the baby's pancreas is steadily producing insulin, which is essential for regulating their blood sugar levels. Their entire biological system is gearing up for the monumental transition to life outside the womb, focusing heavily on lung maturation and weight gain.

At six months pregnant, your weight gain is likely steady, and your bump is a prominent feature. Your uterus extends about three to four centimetres above your belly button. As your abdomen stretches, you might notice the linea nigra—the dark line running from your navel to your pubic bone—becoming much more pronounced. This is a harmless result of pregnancy hormones and will fade after delivery. You may also be experiencing mild swelling, known as oedema, particularly in your ankles and feet. This is caused by your body retaining more fluid and the heavy uterus pressing on the veins in your pelvis, which slows the return of blood from your lower body. While mild swelling is normal, sudden or severe swelling in your face or hands requires immediate medical attention. The increased fluid retention can also affect your wrists and hands, leading to a condition called Carpal Tunnel Syndrome. The swelling compresses the median nerve in your wrist, causing tingling, numbness, or a dull ache in your fingers and hands. This is often worse at night or first thing in the morning. Wearing a supportive wrist splint while sleeping can provide significant relief. You might find yourself feeling increasingly clumsy. Your shifting centre of gravity, combined with the hormone relaxin loosening your joints, can make you feel unsteady on your feet. Take your time when walking, avoid rushing, and wear sensible, flat shoes with good grip. Be particularly careful when getting in and out of the bath or shower. Braxton Hicks contractions (practice contractions) may become more frequent. You might feel your abdomen suddenly tighten and become hard for a few seconds before relaxing again. These should be painless and irregular. They are often triggered by physical exertion, a full bladder, or dehydration. If you experience them, sit down, rest, and drink a large glass of water. Finally, you may notice an increase in frequent urination again. While the uterus moved up and out of the pelvis in the second trimester, it is now large enough that it is beginning to press down on your bladder from above. This is a frustrating but normal symptom. Ensure you lean forward slightly when urinating to completely empty your bladder and reduce the risk of infections. For more on early symptoms, see our week 22 guide.

As you enter your sixth month, the reality of the impending birth often sets in with full force. The third trimester is looming, and the abstract idea of having a baby is becoming a very tangible, imminent reality. This realization can trigger a complex mix of intense excitement and profound anxiety. I once had a patient, Sarah, who arrived for her 23-week check-up in a state of sheer panic. She confessed that she had suddenly realized she hadn't bought a single baby item, hadn't looked at a pram, and hadn't even thought about a birth plan. She felt completely unprepared and overwhelmed. I reassured her that this sudden panic is incredibly common. I told her she still had plenty of time and advised her to tackle just one small task a week. It is completely normal to feel anxious about labour and delivery. The fear of the unknown, the fear of pain, and the fear of complications are all valid concerns. The best way to manage this anxiety is through education. Start reading positive birth stories, discuss your fears openly with your midwife, and consider enrolling in a hypnobirthing or antenatal class to learn practical coping mechanisms. You might also find yourself experiencing vivid, sometimes bizarre dreams. Pregnancy hormones, combined with disrupted sleep and subconscious anxieties about motherhood, can lead to highly intense dream cycles. Try not to read too much into them; they are simply your brain's way of processing the massive life changes ahead. Bonding with the baby often deepens significantly at this stage. Because the baby's hearing is so acute, talking, reading, or singing to your bump is a wonderful way to connect. Encourage your partner to do the same. The baby will learn to recognize your voices, which will be incredibly soothing to them after they are born. Finally, remember to prioritize your relationship with your partner. The focus is naturally shifting towards the baby, but it is vital to maintain your connection as a couple. Plan regular date nights, discuss your hopes and fears for the future, and ensure you are supporting each other emotionally. Use our free due date calculator to help visualize the remaining weeks and plan your time together.

Managing the symptoms at 23 weeks requires a focus on reducing fluid retention and supporting your changing body. If you are suffering from mild oedema (swelling) in your ankles, the most effective strategy is elevation. Whenever you are sitting, prop your feet up on a stool or a stack of pillows so they are higher than your hips. Avoid standing completely still for long periods. To manage Carpal Tunnel Syndrome, avoid repetitive hand movements if possible. If you work at a computer, ensure your workstation is ergonomically sound and take frequent breaks to stretch your wrists and fingers. Wearing a rigid wrist splint at night keeps your wrist in a neutral position, preventing the nerve compression that causes the tingling and numbness. Backache is a persistent companion for many women at this stage. Continue to practice excellent posture. When sitting, ensure your lower back is supported. Avoid heavy lifting entirely. A warm bath, a prenatal massage, or the use of a maternity support belt can provide wonderful relief for aching lumbar muscles. Gentle prenatal yoga is also excellent for maintaining flexibility and core strength. If you are experiencing frequent Braxton Hicks contractions, evaluate your hydration levels. Dehydration is a primary trigger for uterine irritability. Ensure you are drinking at least eight to ten large glasses of water every single day. If the tightenings start, stop what you are doing, sit down, and rest. They should subside quickly. Heartburn and indigestion may continue to flare up. Stick to the strategy of eating small, frequent meals. Avoid eating large meals late in the evening, and steer clear of spicy, greasy, or highly acidic foods. Sleeping with your head and shoulders slightly elevated on extra pillows can help prevent stomach acid from splashing upwards into your oesophagus during the night. Finally, pay attention to your dental health. Pregnancy gingivitis can cause your gums to bleed easily. Use a soft-bristled toothbrush and floss gently every day. If your gums are painful or severely swollen, schedule an appointment with your dentist. Maintaining good oral hygiene is crucial for your overall health during pregnancy.

At 23 weeks, it is time to start tackling the larger practical tasks and preparing for the third trimester. Actionable Tasks for the Support Person:

• Research the big-ticket items: Take the lead on researching and purchasing the essential, larger items. Look into car seats (ensuring they meet current safety standards), cots, and prams. Read reviews and compare prices to help ease her mental load.
• Draft a preliminary birth plan: Sit down together and start discussing your preferences for labour and delivery. Do you want a hospital birth or a home birth? What are your thoughts on pain relief? Start drafting a flexible birth plan to discuss with your midwife.
• Look into maternity/paternity leave: Review your respective company policies regarding parental leave. Understand your financial entitlements and start planning the logistics of your time off work.
• Provide physical comfort: If she is suffering from Carpal Tunnel Syndrome, offer gentle hand and wrist massages. Ensure she has a comfortable setup to elevate her swollen feet in the evenings.

While Braxton Hicks and mild swelling are normal, you must be vigilant for signs of preterm labour or serious complications. Seek Immediate Medical Attention (Go to A&E or contact maternity triage):

• Regular, painful contractions: If your contractions become painful, regular (e.g., every 10 minutes), and do not stop when you rest and hydrate, you must be assessed immediately to rule out preterm labour.
• Fluid leaking from the vagina: A sudden gush or a continuous trickle of clear, watery fluid could mean your waters have broken prematurely. This requires urgent medical attention.
• Severe, sudden swelling or headaches: Sudden swelling in your face or hands, accompanied by a severe headache or visual disturbances, are classic warning signs of pre-eclampsia.

Next week is a massive milestone: week 24, often considered the point of viability. We will discuss what this means and how your baby is preparing for survival outside the womb. Make sure to read ahead to our week 24 guide, and don't forget to use our free due date calculator to track your exact progression towards the third trimester!