Week 35
Your baby is the size of a honeydew melon
What's happening this week
Your baby is about 18.5 inches from head to toe and weighs approximately 5.25 pounds. The amniotic sac that once had plenty of room for acrobatics is getting seriously crowded — your baby fills most of the available space.
Despite the cramped quarters, your baby is still moving. The movements are different now — less somersaulting, more stretching, pushing, and rolling. You might feel a foot pressing into your ribs or an elbow sliding across your belly. These movements should remain consistent; a noticeable decrease warrants a call to your provider.
The brain continues its extraordinary development. At this stage, the brain weighs roughly two-thirds of what it will weigh at birth, and it's still adding mass and complexity every day. The neural connections that govern everything from breathing to personality are forming and strengthening.
Your baby's kidneys are fully developed and producing a significant amount of urine. The liver can process some waste products. The digestive system is ready to handle breast milk or formula. The lungs are continuing to mature — surfactant production is in full swing, and the alveoli are nearly ready for independent breathing.
Fat accumulation continues to be a priority. Your baby is adding about an ounce of fat per day, which will help with temperature regulation, energy storage, and brain development after birth. That chubby newborn look you see in photos? It's being built right now.
Most babies are in a head-down position by now. If yours hasn't turned yet, your provider may discuss options for encouraging the baby to turn, or may begin discussing the possibility of a breech delivery or planned cesarean.
Your body this week
Five weeks to go — and your body is making its final preparations for birth. Everything feels more intense now: the contractions, the pressure, the fatigue, and the anticipation.
Your uterus extends well into your ribcage, and your internal organs are at their most compressed. Heartburn, breathlessness, and the constant need to urinate are all at peak intensity. Some people also experience rib pain from the baby pressing upward, or pubic bone pain from the pressure below.
Your cervix may begin to soften and thin (called effacement) in preparation for labor. Your provider may check for cervical changes at upcoming visits, though not all providers do routine cervical checks. If yours does, remember that cervical dilation and effacement at this stage don't predict when labor will start — some people walk around dilated to 2-3 centimeters for weeks.
Nesting instinct may be in overdrive. If you find yourself scrubbing the grout in the bathroom at midnight or reorganizing the nursery for the third time, you're not alone. Channel this energy wisely — practical tasks like freezer meals, laundry, and organizing baby supplies are more valuable than reorganizing your spice rack.
The GBS test should be done by now or scheduled for this week. Your provider will also be monitoring your blood pressure closely and may increase visit frequency to weekly starting around 36 weeks.
Emotionally, you may be oscillating between desperate impatience to meet your baby and sheer terror about labor. Both feelings are completely normal, and they can coexist without contradiction.
For dads
Five weeks. Your partner is in the final stretch, and she knows it — every day feels longer, every discomfort more acute, and the finish line is so close it's maddening. She may be anxious, restless, or deeply over being pregnant. All of that is valid. Your role hasn't changed: be present, be helpful, and be reassuring without being dismissive. Logistically, everything should be in place by now. If it's not, this is your last comfortable window to get it done. After this, any day could be the day. Hospital bags in the car. Car seat checked. Pediatrician confirmed. Work leave arranged. Phone charged. Gas in the car.
Think about your role during labor. Are you going to be her breathing coach? Her hand to squeeze? The person who communicates with the medical team? The one who plays the calming playlist? Ideally, you're a combination of all of these — flexible and responsive to what she needs in the moment. Review your birth plan together one more time. Ask her: 'When you're in labor, what do you need from me?' Her answer might surprise you, and it's better to know now than to guess under pressure.
Common concerns
Is it normal for the baby to move less at 35 weeks?+
The nature of movement changes — big kicks become pushes and stretches as space gets tighter — but the overall level of activity should remain consistent. You should still feel 10 movements within 2 hours during your baby's active times. If you notice a significant decrease in movement, lie on your left side, drink something cold, and count. If you still don't reach 10 movements in 2 hours, contact your provider. Changes in movement can sometimes indicate that the baby needs monitoring.
What does cervical effacement mean?+
Effacement is the thinning and shortening of the cervix in preparation for labor. Before labor, the cervix is thick and about 3-4 centimeters long. As your body prepares, the cervix thins (effaces) and opens (dilates). Effacement is measured as a percentage — 0% means no thinning, 100% means fully thinned. Your provider may check your cervix at this stage, though it's important to know that being 50% effaced at 35 weeks doesn't mean labor is days away. Some people efface gradually over weeks; others efface rapidly during labor itself.
Can I still travel at 35 weeks?+
Most providers recommend staying close to home after 35-36 weeks, as labor could start at any time. Most airlines restrict flying after 36 weeks for domestic flights. If you need to travel, discuss it with your provider and bring your prenatal records. Avoid going anywhere more than an hour from a hospital with a labor and delivery unit. At this stage, being close to your chosen birth location is more important than any trip.
How do I know when it's real labor versus false alarm?+
Real labor contractions are regular (getting progressively closer together), increasingly painful, don't stop with rest or hydration, and often start in the back and radiate to the front. False labor (Braxton Hicks) is irregular, usually painless, and stops when you change positions. Other signs of real labor: your water breaks, you see bloody show (mucus tinged with blood), or you feel constant low back pain with increasing pressure. When in doubt, call your provider — they'd rather assess you and send you home than have you wait too long.
Product picks for week 35
We may earn a small commission if you purchase through links on this page — at no extra cost to you. Learn more.
Going-home outfit for baby
Your baby needs something to wear for the ride home — a soft outfit in newborn size plus a hat and socks for warmth.
Postpartum padsicles supplies
Frozen pads with witch hazel and aloe provide incredible perineal relief after vaginal delivery — make them now and freeze.
Infant car mirror
A backseat mirror lets you see your rear-facing baby while driving — install it now so it's ready for that first car ride home.
A quick note: This content is for informational purposes only and is not a substitute for professional medical advice. Always talk to your healthcare provider about any questions or concerns. Learn how we create our content.
Content based on guidance from the American College of Obstetricians and Gynecologists (ACOG), the American Academy of Pediatrics (AAP), Mayo Clinic, and peer-reviewed medical literature. Learn more about how we create our content.