what to expect at 38 weeks pregnant

Quick take: At 38 weeks you’re in the final stretch of pregnancy. Your baby is almost fully grown, you may feel early labor signs, and most routine tests are done. It’s a good time to fine‑tune your birth plan, pack your hospital bag, and keep up gentle exercise and nutrition while watching for any red‑flag symptoms that require a call to your provider.

It’s 2 a.m., you’ve just felt a sudden tightening in your lower belly and wondered if it’s the start of labor. You’re 38 weeks pregnant, and the clock feels louder than ever. First, breathe. This article walks you through exactly what to expect in the last two weeks, from your baby’s growth to the tests you’ll have, the discomforts that pop up, and the practical steps that keep you feeling prepared.

We’ll cover the milestones of a week‑38 fetus, how much weight you should have gained, the foods to steer clear of, safe ways to stay active, and the signs that truly mean it’s time to head to the hospital. You’ll also find a handy checklist for your hospital bag, a concise birth‑plan template, and postpartum recovery tips that start the moment your baby arrives.

All the information is grounded in guidance from ACOG, the NHS, CDC, and WHO, and we’ve added practical, real‑world details that many moms have shared with us. Keep reading for a clear, calm roadmap through the final days of pregnancy.

What is the average length of pregnancy at 38 weeks?

The typical full‑term pregnancy lasts about 40 weeks, counted from the first day of your last menstrual period. Being at 38 weeks means you’ve completed roughly 95 percent of that timeline. Most clinicians define “full term” as 37 weeks 0 days to 42 weeks 0 days, so you’re safely within the window for a healthy delivery.

Statistically, about 80 percent of babies are born by 40 weeks, and roughly 5 percent arrive between 38 and 39 weeks. This is why many hospitals consider a 38‑week baby “early term” but still fully viable, with mature lungs and brain development that support independent breathing.

Because gestational age can vary by a few days, your provider will use an ultrasound dating scan and your menstrual history to confirm you’re truly at 38 weeks. If you’re unsure, ask for a quick dating check at your next appointment.

What are the fetal development milestones at week 38?

Key milestones include:

• Brain development: Neural pathways are solidifying, and the baby can respond to sounds and light.
• Lung readiness: Surfactant levels are high enough for breathing outside the womb.
• Body fat: The baby is gaining a protective layer of fat, helping regulate temperature after birth.
• Reflexes: Sucking and swallowing reflexes are fully functional, preparing for feeding.

These developments mean that most babies born at 38 weeks have a very high chance of thriving without intensive neonatal care. Nonetheless, your provider will monitor your baby’s heart rate and movement closely, especially during the final weeks.

What are the signs of labor at 38 weeks pregnant?

Labor can begin with subtle cues that become more pronounced. Typical signs at 38 weeks include:

These signs often appear together, but they can also start one at a time. The most reliable indicator is a pattern of regular, increasingly intense contractions that don’t go away with hydration or movement.

How can I know if I’m in false labor at 38 weeks?

False labor, also called “Braxton‑Hicks” contractions, can feel similar to true labor but usually differs in timing and intensity. Here’s how to tell:

• Irregular timing: Braxton‑Hicks come and go, often spaced more than 15 minutes apart.
• Short duration: They typically last under 30 seconds.
• Ease with movement: Changing position, walking, or drinking water often eases them.
• No progressive intensity: True labor contractions grow stronger, while false labor stays the same.

If you’re unsure, try a “contraction timer”: note the start time, length, and frequency for an hour. Share the log with your midwife or obstetrician, and they can help you decide whether it’s time to head to the hospital.

How much weight should I gain by 38 weeks pregnant?

Weight‑gain recommendations depend on your pre‑pregnancy Body Mass Index (BMI). The American College of Obstetricians and Gynecologists (ACOG) suggests the following total gains by the end of pregnancy:

By 38 weeks most women have reached 90‑95 percent of their target gain. If you’re a few pounds short or over, talk with your provider—they’ll tailor nutrition advice and may suggest a modest adjustment in your diet or activity level.

What foods should I avoid at 38 weeks pregnant?

Even in the final weeks, food safety remains crucial. The CDC and NHS advise steering clear of:

• Unpasteurized dairy: Soft cheeses like brie, camembert, and raw milk can harbor Listeria.
• Undercooked meats and eggs: Ensure poultry reaches an internal temperature of 165 °F (74 °C) and eggs are fully set.
• High‑mercury fish: Limit shark, swordfish, king mackerel, and tilefish; stick to low‑mercury options like salmon, sardines, and shrimp.
• Raw sprouts: Alfalfa, clover, and radish sprouts can contain bacteria.
• Excess caffeine: Keep caffeine under 200 mg per day (about one 12‑oz coffee).

Hydration is equally important. Aim for 8–10 glasses of water daily, and consider a glass of fortified orange juice for vitamin C and calcium.

What tests are done at 38 weeks pregnant?

Most providers schedule a final prenatal visit around 38 weeks. Typical assessments include:

• Physical exam: Blood pressure, weight, fundal height, and fetal heart rate check.
• Group B Streptococcus (GBS) screening: A swab taken between 35–37 weeks; results guide intrapartum antibiotics.
• Ultrasound (if needed): To confirm fetal position, estimate size, and check amniotic fluid volume.
• Blood tests: Hemoglobin, iron, and glucose levels if not done earlier.
• Kick count review: Ensuring you’re feeling at least 10 movements in a two‑hour window.

These tests are designed to catch any late‑onset issues, such as low iron or a breech position, giving you and your care team time to plan interventions.

What can I expect during my 38‑week prenatal visit?

During the appointment you’ll likely sit with a midwife or obstetrician who will:

1. Measure your blood pressure and weight, comparing them to earlier visits.
2. Listen to your baby’s heart rate with a Doppler device.
3. Review your birth‑plan draft and answer any lingering questions.
4. Discuss signs of labor, including when to call the hospital.
5. Provide a copy of the GBS test result (if already performed) and explain any follow‑up steps.

Take this time to bring a written list of concerns—common topics include pain management options, induction policies, and newborn feeding plans. The visit usually lasts 20–30 minutes, but you can ask for extra time if needed.

Can I still exercise at 38 weeks pregnant?

Yes, staying active is safe for most pregnancies up to 38 weeks, provided you avoid high‑impact or contact sports. The CDC and ACOG recommend:

• Low‑impact cardio: Walking, stationary cycling, or swimming for 20–30 minutes most days.
• Gentle strength work: Light dumbbells or resistance bands, focusing on upper‑body and pelvic‑floor muscles.
• Stretching and prenatal yoga: Improves flexibility and reduces back pain.

Listen to your body: if you feel dizziness, shortness of breath, uterine pain, or vaginal bleeding, stop and contact your provider. Hydration and supportive shoes are essential.

What are the best sleeping positions for 38 weeks pregnant?

From the second trimester onward, sleeping on your left side is recommended. This position improves blood flow to the placenta, kidneys, and uterus, and reduces pressure on the inferior vena cava—a large vein that returns blood from your legs.

If you’re uncomfortable, place a pillow between your knees and another behind your back for support. A small wedge pillow under your abdomen can also relieve pressure. Avoid lying flat on your back, as it can cause dizziness and reduce fetal circulation.

What are common discomforts at 38 weeks pregnant and how can I alleviate them?

As the baby drops lower, many women experience new or intensified symptoms. Here are the most frequent discomforts and practical relief tips:

• Back pain: Use a firm mattress, a pregnancy pillow, and gentle stretches. A warm‑compress before bedtime can reduce muscle tension.
• Frequent urination: Limit fluids an hour before bedtime and practice pelvic‑floor exercises to strengthen bladder control.
• Heartburn: Eat smaller meals, avoid spicy foods, and stay upright for at least an hour after eating. Over‑the‑counter antacids approved by your provider are safe.
• Swollen feet and ankles: Elevate legs when sitting, wear supportive compression stockings, and keep moving—short walks help fluid circulation.
• Braxton‑Hicks contractions: Hydrate, change position, or take a warm shower. If they become regular, contact your provider.

Remember, each body reacts differently. If any symptom feels severe or new, call your care team promptly.

When will my baby be born if I'm 38 weeks pregnant?

Statistically, about 50 percent of babies deliver within two weeks after reaching 38 weeks. Your due date is an estimate, not a guarantee. Factors influencing timing include:

• Maternal health (e.g., hypertension, diabetes)
• Fetal position (head‑down vs. breech)
• Previous pregnancy history (pre‑term or late‑term births)
• Placental health and amniotic fluid levels

If you haven’t gone into labor by 40 weeks, many providers discuss induction options, especially if there are medical indications. Discuss your preferences now so you’re prepared for either spontaneous labor or a possible induction.

How to prepare a hospital bag at 38 weeks pregnant?

Having a well‑packed bag reduces stress when the moment arrives. Aim to have it ready by the end of week 38. Here’s a concise checklist:

Don’t forget personal items like a favorite snack, a water bottle, and a book or playlist for relaxation. Pack the bag in a sturdy tote or backpack that’s easy to carry up stairs.

What should be on my birth plan checklist at 38 weeks?

A birth plan is a conversation starter, not a contract. Include the essentials, and keep it flexible:

1. Labor preferences: Desired environment (dim lights, music), mobility options (walking, birthing ball), and pain‑relief choices (epidural, nitrous, natural).
2. Delivery preferences: Vaginal birth after cesarean (VBAC) if applicable, position for pushing, and whether you want delayed cord clamping.
3. Newborn care: Immediate skin‑to‑skin, breastfeeding intentions, vitamin D supplementation, and any cultural or religious customs.
4. Partner involvement: Roles for support person, visitor restrictions, and any special accommodations.
5. Post‑delivery plans: Rooming‑in preferences, pain‑management medication, and length of stay.

Bring a printed copy to your 38‑week visit, and discuss any items that may conflict with hospital policy. Your provider can suggest realistic adjustments.

Postpartum recovery tips after delivering at 38 weeks

The first six weeks after birth are a time of healing and adjustment. Here are evidence‑based strategies:

• Rest when you can: Sleep in short bursts, accept help from loved ones, and keep the hospital bag stocked with easy meals.
• Pelvic‑floor rehab: Gentle Kegel exercises start soon after delivery and improve bladder control and sexual health.
• Nutrition: Continue a balanced diet rich in protein, iron, calcium, and omega‑3 fatty acids to support tissue repair and breastfeeding.
• Hydration: Aim for 2–3 liters of water daily, especially if nursing.
• Emotional well‑being: Post‑partum blues affect up to 80 percent of new mothers; if low mood persists beyond two weeks, reach out for support.

Most providers schedule a postpartum check‑up at 6 weeks, but you can request an earlier visit if you have concerns about bleeding, pain, or mental health.

From our medical team: Reaching 38 weeks is a milestone worth celebrating. The baby’s development is essentially complete, and most of the work now focuses on you—managing comfort, staying active, and preparing for labor. Keep a daily log of any new symptoms, stay hydrated, and trust the routine checks you’ve been doing. If anything feels out of the ordinary—persistent bleeding, a sudden surge of pain, or a rapid change in fetal movement—don’t wait. Call your provider right away. You’re almost there, and you’ve got a solid plan in place.

Myth vs. fact

Myth: “If I haven’t gone into labor by 38 weeks, something is wrong.”

Fact: Most babies are born between 37 and 42 weeks. Being at 38 weeks is perfectly normal, and many labor on schedule or after a brief induction if needed.

Myth: “I must stop all exercise after 35 weeks.”

Fact: Light to moderate activity, such as walking, swimming, or prenatal yoga, is safe and can reduce discomfort through week 38, unless your provider advises otherwise.

Myth: “All foods are safe now that the baby is almost born.”

Fact: Food safety rules (avoid unpasteurized dairy, undercooked meats, high‑mercury fish) remain important until delivery.

Key takeaways

• At 38 weeks you’re in the “early‑term” window; most babies are fully developed.
• Watch for regular contractions, water breaking, or a bloody show—these are signs to head to the hospital.
• Maintain a balanced diet, stay hydrated, and keep caffeine under 200 mg per day.
• Gentle exercise, such as walking or swimming, is safe unless your provider says otherwise.
• Pack your hospital bag now—include comfort items for you and essentials for the newborn.
• Review your birth plan, discuss any concerns at the 38‑week visit, and know the red‑flag symptoms that require a call.

Frequently asked questions

What are the signs that labor is starting at 38 weeks?

Regular, painful contractions every 5–10 minutes, a sudden gush of fluid (water breaking), or a pink‑tinged “bloody show” are the most reliable indicators. If any of these occur, call your provider or head to the hospital.

Is it normal to lose the baby bump at 38 weeks?

Yes. As the baby drops (lightening), your abdomen may appear lower and less pronounced. This is a common sign that the baby is getting into position for birth and is not a cause for concern.

How much weight should I have gained by 38 weeks of pregnancy?

Weight‑gain goals depend on pre‑pregnancy BMI. For a normal‑weight BMI (18.5–24.9), total gain of 25–35 lb is typical, with about 30 lb reached by week 38. Your provider will tailor advice to your individual situation.

Can I still have sex at 38 weeks pregnant?

In most uncomplicated pregnancies, sex is safe up to labor. Use a comfortable position, avoid deep thrusts that cause pain, and stop if you experience bleeding or uterine contractions.

What tests are performed during the 38‑week prenatal appointment?

The visit usually includes blood pressure measurement, fetal heart rate check, a Group B Streptococcus (GBS) swab, and a review of your kick count. An ultrasound may be done if the provider wants to confirm fetal position.

When should I go to the hospital if I’m 38 weeks pregnant?

Head to the hospital if you have regular, increasingly strong contractions lasting 30–70 seconds, your water breaks, you notice a heavy bloody show, or you experience severe pain, bleeding, or a sudden change in fetal movement.

When to call your doctor

Contact your provider immediately if you experience any of the following:

• Regular contractions (every 5–10 minutes) lasting over an hour.
• Sudden gush or continuous leak of fluid.
• Heavy vaginal bleeding (soaking a pad in < 30 minutes).
• Severe abdominal pain or cramping not relieved by rest.
• Significant decrease in baby’s movements (fewer than 10 kicks in two hours).
• Fever over 100.4 °F (38 °C) with chills.

This article is for informational purposes only and does not replace personalized medical advice. Always discuss any concerns with your obstetrician, midwife, or qualified healthcare professional.

References

1. American College of Obstetricians and Gynecologists (ACOG). “Weight Gain During Pregnancy.” 2023 clinical guidance.
2. National Health Service (NHS). “Pregnancy week by week – 38 weeks.” Updated 2022.
3. Centers for Disease Control and Prevention (CDC). “Group B Strep (GBS) – Pregnancy.” 2023.
4. World Health Organization (WHO). “Maternal health and safe delivery.” 2022.
5. Mayo Clinic. “Exercise during pregnancy.” 2023.
6. Royal College of Obstetricians and Gynaecologists (RCOG). “Guidelines for prenatal care.” 2022.
7. U.S. Food and Drug Administration (FDA). “Caffeine in pregnancy.” 2021.
8. American Academy of Pediatrics (AAP). “Newborn care basics.” 2023.