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Ten Moons
Pregnancy home

Third trimester

Week 33

7 weeks to go

Eight short cards a week — the baby, your body, and you. You can read them in ten minutes and close the app.

Baby

What's growing

Immune system priming

About 44 cm. Antibodies pass from you to baby across the placenta.

Source: Moore, Persaud & Torchia, The Developing Human, 11th ed. (2020)

Body

What's changing in you

Swelling, mild and symmetric

Common and usually benign. Sudden, asymmetric, or with headache/visual changes — call your provider.

Source: Williams Obstetrics, 26th ed. (Cunningham et al., 2022)

General info — not personalized medical advice.

Brain

Maternal brain

Anticipatory grief for couplehood

Mourning the just-the-two-of-you life is normal. It does not mean you don't want the baby.

Source: Cowan & Cowan, When Partners Become Parents (1992; 2nd ed. 2000)

Bond

You & baby

Sing the same lullaby nightly

Newborns recognize lullabies sung in T3 up to four months postpartum.

Source: Partanen et al., PNAS 110(37), 2013 — Prenatal experience and learning of melodies

Partner

For your partner

Discuss postpartum visitors

Who, when, how long, what they bring. Decide together. Be the bouncer for each other.

Source: Cowan & Cowan, When Partners Become Parents (1992; 2nd ed. 2000)

Movement

Move with care

Wall-supported squats

Builds endurance you may want during pushing. Heels grounded, breath steady. Avoid breath-holding (Valsalva) unless you're a trained lifter — Davenport 2025 supports brief Valsalva in trained participants only.

Source: Davenport et al., British Journal of Sports Medicine 59(3), 2025 — Acute maternal and fetal responses to high-intensity resistance exercise in pregnancy (senior author: Margie Davenport, PhD)

General info — not personalized medical advice.

Reflection

60-second prompt

What boundaries will you protect postpartum?

Two. Specific. Tell your partner.

Source: Gottman, The Seven Principles for Making Marriage Work (1999) — Repair attempts

Developed and curated by perinatal psychologists, family & couples counsellors, doulas, perinatal health & fitness specialists, and IBCLCs / lactation consultants. Educational — not a substitute for medical care.