What to Consider During the 7th Month of Pregnancy

The third trimester brings big changes for both mother and baby. By the 7th month, the fetus is growing rapidly, and a pregnant woman’s body is actively preparing for birth. Here’s what’s happening with your baby, what changes to expect in your own body, and what to watch for during this stage.

Fetal Development in the 7th Month

Here’s an overview of what’s typically happening with your baby during this stage:

How Your Body Changes in the 7th Month

Your body is going through real, noticeable changes as it prepares for birth. This stage can be physically and emotionally demanding, and it’s worth being kind to yourself as you adjust.

Balance Changes

As your belly grows, your center of gravity shifts, which can make you feel less steady on your feet, especially with bending, reaching, or quick movements. Flat, supportive, non-slip shoes can help reduce the risk of trips and falls during this stage.

Back Pain

The growing uterus puts pressure on nearby organs, muscles, and joints, including the lower back and pelvis, which is a common source of discomfort at this stage. Staying appropriately active — walking and swimming are often well tolerated — tends to help more than prolonged sitting or lying still.

Colostrum Leakage

Some women notice a yellowish fluid (colostrum) leaking from their breasts in the third trimester. This is a normal sign that your body is preparing for breastfeeding. It’s best not to manually express or squeeze it out, since nipple stimulation can trigger oxytocin release, which may cause uterine contractions.

Increased Vaginal Discharge

An increase in white, mild-smelling vaginal discharge (leukorrhea) is common in the third trimester. Use a panty liner rather than a tampon to manage the moisture and stay comfortable — tampons aren’t recommended during pregnancy, since they can increase infection risk and aren’t designed for this type of discharge. Change liners regularly and keep the area clean and dry.

Braxton Hicks (False Labor) Contractions

Even though your due date is still a couple of months away, it’s common to notice Braxton Hicks contractions — irregular, usually mild tightening of the uterus. These typically come and go without a set pattern. If contractions become regular, increasingly frequent, or persist for an extended period, contact your doctor, since this can be a sign of preterm labor rather than ordinary Braxton Hicks activity.

What to Watch For in the 7th Month

Most of the changes above are a normal part of the third trimester, but a few symptoms are worth prompt medical attention.

Symptoms That Need Prompt Attention

1. Fluid Leaking from the Vagina: This could indicate your water has broken, which can carry risks including infection or preterm birth if not evaluated promptly. Amniotic fluid is typically clear or pale and doesn’t have the ammonia smell of urine, but any suspected fluid leakage should be checked by your doctor rather than assumed to be one or the other.
2. Vaginal Bleeding: Any vaginal bleeding beyond light spotting warrants prompt medical evaluation, since it can be a sign of a complication that needs timely attention.
3. Severe Headache, Abdominal Pain, or Vision Changes: These can be signs of preeclampsia, a serious condition involving high blood pressure that requires urgent evaluation. Regular prenatal visits, including blood pressure checks, are your main tool for catching this early.
4. Regular, Strengthening Contractions: True labor contractions tend to come at regular intervals (commonly every 5 to 10 minutes or closer as labor progresses) and grow stronger and more frequent over time — different from Braxton Hicks, which are irregular and don’t follow this progressive pattern. Regular contractions this early can indicate preterm labor and should be evaluated promptly.
5. Decreased Fetal Movement: A noticeable drop in your baby’s usual movement pattern should be reported to your doctor the same day. Many practices use a simple kick-count check to confirm your baby is doing well.

Routine and As-Needed Prenatal Visits

A routine prenatal visit and ultrasound typically happens in this general window of the third trimester to check your baby’s growth, position, and amniotic fluid levels. Beyond your scheduled visits, it’s worth contacting your doctor for an earlier check if you notice:

1. Ongoing digestive issues like constipation, indigestion, or diarrhea
2. Unusual fatigue, dizziness, or a significant drop in appetite
3. Persistent, hard-to-manage heartburn
4. Unusual vaginal discharge, especially brown or dark red in color
5. Persistent abdominal or lower back cramping
6. Bleeding gums (common in pregnancy, but worth mentioning at your next dental or prenatal visit)

Diet in the 7th Month of Pregnancy

Nutrition remains important throughout the third trimester as your baby continues to grow. A few key nutrients deserve particular attention:

1. Iron and Protein: The RDA for iron during pregnancy is about 27 mg per day, which supports the significant increase in blood volume and helps prevent anemia going into labor. Good sources include lean beef, poultry, legumes, and fortified grains.
2. Calcium, Magnesium, and Zinc: These minerals support your bone health and your baby’s developing skeleton, and may help reduce leg cramps. Good sources include dairy products, oats, beans, eggs, salmon, and leafy greens.
3. Fiber: Adequate fiber from vegetables and fruit supports digestion and helps prevent constipation, a common third-trimester complaint.
4. Folate/Folic Acid: The recommended intake during pregnancy is about 600 micrograms (mcg) per day — not milligrams, a common mix-up — typically met through a combination of diet and a prenatal vitamin. Folate-rich foods include leafy greens, beans, and fortified grains, but a supplement remains the most reliable way to hit the target consistently.
5. DHA (an Omega-3 Fat): DHA supports your baby’s brain development, with roughly 200mg per day commonly recommended. The best sources are low-mercury fatty fish like salmon and sardines, DHA-fortified foods (check labels, since fortification varies by product), or an algae-based DHA supplement for those who don’t eat fish.

Foods to Limit:

1. Excess Salt: A high-sodium diet is associated with increased fluid retention, which can worsen swelling in the legs, hands, and feet during pregnancy.
2. Fried and Very Spicy Foods: These can aggravate heartburn, which is already common in the third trimester as the growing uterus puts pressure on the stomach.
3. Alcohol, and Limiting Caffeine: Alcohol should be avoided entirely during pregnancy due to the risk of fetal alcohol spectrum disorders, and caffeine intake is generally recommended to stay under about 200mg a day (roughly one 12oz cup of coffee).
4. Highly Processed Fast Food: While convenient, these foods tend to be lower in the nutrients you need right now, so it’s worth balancing them with more nutrient-dense choices when possible.

Healthy Habits for the 7th Month

1. Stay active with pregnancy-appropriate exercise like walking, prenatal yoga, swimming, or stationary cycling — these support flexibility, stamina for labor, and overall wellbeing (check with your doctor about what’s appropriate for your specific pregnancy).
2. Choose breathable, natural-fiber clothing for comfort as your body temperature and circulation change.
3. Make time for activities that help you relax and de-stress — music, a hobby, gentle movement, or simply resting.
4. Side-sleeping, particularly on your left side, is generally recommended in the third trimester to support healthy blood flow, though switching sides through the night is normal and fine.
5. Balance activity with adequate rest to avoid overexertion.

A Few Precautions

1. Avoid vigorous nipple stimulation or breast expression, since it can trigger contractions — gentle, incidental touch isn’t a concern.
2. Skip high heels and unstable footwear, and avoid lifting heavy objects, given the balance and joint changes of pregnancy.
3. There’s no strong evidence that ordinary household noise harms your baby, but very loud, sustained noise exposure is worth minimizing as a general comfort measure for you both.
4. Move carefully when reaching up high or bending down low, mainly to protect your own balance and avoid falls, given the physical changes of this stage.

The 7th month is an important stage of rapid growth for your baby and real physical change for you. Most of what you’ll experience is a normal part of the third trimester, but knowing the warning signs — especially bleeding, fluid leakage, signs of preeclampsia, and decreased fetal movement — helps you know when to reach out for care rather than wait it out. (For more on what’s ahead, see our essential guide for the final month of pregnancy and our guide to pregnancy yoga for gentle exercise ideas.) This article is intended for general education and isn’t a substitute for personalized medical advice from your OB-GYN or midwife.

Frequently Asked Questions

What should I watch for during the 7th month of pregnancy?

Contact your doctor promptly for vaginal bleeding, fluid leaking from the vagina, severe headache or vision changes, regular strengthening contractions, or a noticeable decrease in your baby's movement — these can be signs of complications that need timely evaluation.

How much folic acid do I need in the 7th month of pregnancy?

About 600 micrograms (mcg) per day is the general recommendation during pregnancy — not milligrams, which would be an enormous overdose. This is typically met through a combination of diet and a prenatal vitamin.

Is it safe to use tampons for increased discharge during pregnancy?

No, tampons aren't recommended during pregnancy. Use a panty liner instead to manage increased discharge, and change it regularly to stay clean and comfortable.

How can I tell Braxton Hicks contractions from real labor in the 7th month?

Braxton Hicks contractions are irregular and don't follow a consistent pattern. True labor contractions come at regular intervals, get closer together over time, and grow stronger — this pattern this early in pregnancy should be evaluated promptly, since it can indicate preterm labor.

What foods provide DHA during pregnancy?

Low-mercury fatty fish like salmon and sardines are the best natural sources, along with DHA-fortified foods (check labels) or an algae-based DHA supplement for those who don't eat fish.

References

• American College of Obstetricians and Gynecologists (ACOG) — third trimester fetal development and prenatal care (acog.org).
• National Institutes of Health, Office of Dietary Supplements — folate, iron, and omega-3 fact sheets (ods.od.nih.gov).
• CDC — folic acid recommendations for pregnancy (cdc.gov).
• Mayo Clinic — third trimester pregnancy: what to expect (mayoclinic.org).