Welcome to 36 weeks—you've officially entered "early term" territory. The baby is essentially done cooking; from here it's mainly adding weight and final brain development. The nesting instinct is lik...
Week 36: Early Term Territory
The Quick Brief
Welcome to 36 weeks—you've officially entered "early term" territory. The baby is essentially done cooking; from here it's mainly adding weight and final brain development. The nesting instinct is likely peaking, hospital bags should be fully packed, and you need to know your route to the hospital cold. The next few weeks are about being ready at a moment's notice.
What's Happening with Baby
Size: About the size of a honeydew melon—roughly 18.7 inches long and weighing about 6 pounds.
At 36 weeks, the baby's lungs are completely formed. The alveolarization stage—where mature alveoli develop—is now in full swing. The baby has enough surfactant to breathe independently if born now, though a few more weeks would be optimal.
According to the March of Dimes, it's getting crowded in there. While the baby doesn't have room for the big flips and rolls of earlier weeks, you should still feel kicks and stretches. The baby weighs about 6 to 7 pounds now and is continuing to add fat. That chubby baby look is developing.
The brain and liver are still developing—important reasons why, if the pregnancy is healthy, waiting until at least 39 weeks is recommended. But if baby decided to arrive now, outcomes are generally very good.
What's Happening with Mom
The nesting instinct often peaks around now. That sudden urge to organize every closet, deep clean the house, and make sure everything is "just right"? That's biology preparing for baby's arrival. Channel this energy productively—just make sure she's not overdoing it physically.
Lightning crotch may make an appearance (or become more frequent). This is a sudden, sharp, shooting pain in the vagina, pelvis, or rectum that can literally stop her in her tracks. It happens when the baby puts pressure on the cervix or surrounding nerves. It's startling and uncomfortable but not dangerous—think of it as the baby getting into position. It typically lasts only seconds. According to the Cleveland Clinic, it's most common in the third trimester when the baby is head-down and dropping into the pelvis.
She may feel increased pelvic pressure as the baby "drops" (engages in the pelvis). This can actually make breathing easier as the pressure on the diaphragm decreases, but bathroom trips increase as the bladder gets more compressed.
Warning signs to watch for: Pain that lasts more than a minute (lightning crotch should be brief), any vaginal bleeding, leaking fluid, regular contractions, fever, or significant decrease in baby's movement.
What Dad Should Do This Week
1. Final hospital bag check
The bag should be completely packed and sitting by the door. Do a final inventory: phone chargers (bring multiple), comfortable clothes for both of you, toiletries, going-home outfit for baby, car seat properly installed in the car, insurance cards, birth plan copies, snacks for you (you'll need them during a long labor), and any comfort items she wants. Don't forget a pillow from home—hospital pillows are notoriously uncomfortable.
Print 4-5 copies of your birth plan. One dad learned that nurses work 8-12 hour shifts — you’ll go through 4-6 different nurses during your stay. Each new nurse walks in and asks the same questions. Hand them a printed copy instead: lighting preferences, music, visitor policy, allergies, breastfeeding intent, who cuts the cord. The nurses will thank you for being prepared.
2. Know your routes—plural
Drive to the hospital. Actually drive it. Know where the labor and delivery entrance is (it's often different from the main entrance). Know where to park. Have at least two routes mapped in case of traffic or road closures. Know approximately how long it takes during different times of day. Program the hospital's labor and delivery phone number into your phone. When contractions are 5 minutes apart and she's working through them, you don't want to be figuring out directions.
3. Finalize work handoff
This is your final deadline for getting work coverage sorted. Your out-of-office message should be drafted and ready to activate. Your backup should know everything they need to know. Your manager should have your communication plan. If there are any critical deadlines in the next 4-6 weeks, either finish them now or ensure someone else can handle them.
4. Prep the house for coming home
Think about what you'll need in those first days home: diapers, wipes, a place for the baby to sleep, clean sheets, easy food access. Do a deep clean now (or hire someone to do it)—you won't have time or energy later. Stock up on household essentials so you're not making Target runs with a newborn.
The Relationship Check-In
As the due date approaches, anxiety can spike for both of you. Take some time this week to check in with each other—not about logistics, but about how you're actually feeling. Are you nervous? Excited? Scared? All of the above? Create space for honest conversation without trying to fix each other's feelings.
If she's experiencing lightning crotch or other painful symptoms, your empathy matters. You can't fix it, but you can acknowledge it, bring her water, help her change positions, and not minimize what she's going through.
What's Coming Up
At 37 weeks, you'll hit full term. Appointments are weekly now. The baby could technically arrive any day from this point forward, though most first-time moms deliver around 40 weeks (and only 5% deliver on their actual due date). The next few weeks are about staying ready and staying patient.
Quick Reference Box
Baby size
Honeydew melon (~6 lbs, 18.7 inches)
Key milestone
Lungs completely formed, entering "early term"
Dad priority
Know hospital route(s), final bag check, work handoff complete
Sources
March of Dimes, Cleveland Clinic, American Pregnancy Association