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Ten Moons
Pregnancy home

Second trimester

Week 19

21 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

Vernix appears

About 15 cm. A waxy coating forms to protect the skin from amniotic fluid.

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

Body

What's changing in you

Energy plateau

T2 is often the most workable trimester. Use it — without overloading.

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

General info — not personalized medical advice.

Brain

Maternal brain

Decisions about the anatomy scan

Find out the sex? Don't? Both are valid. Decide before the scan, not in the room.

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

Bond

You & baby

Movements may become regular

Many feel consistent kicks now, especially in the evening as cortisol drops.

Source: Cranley, Nursing Research 30(5), 1981 — Maternal-Fetal Attachment Scale

Partner

For your partner

Go to the anatomy scan

Co-viewing milestone scans is associated with stronger paternal-fetal attachment.

Source: Feldman, Hormones and Behavior 77, 2016 — The neurobiology of human attachments

Movement

Move with care

Pelvic floor coordination

360° breath: ribs and pelvic floor expand on the inhale, gentle lift on the exhale. Not a kegel sprint (Bø 2016).

Source: Bø et al., British Journal of Sports Medicine 50(10), 2016 — Pelvic floor & exercise in pregnancy

General info — not personalized medical advice.

Nutrition

Eat for two brains

Hydration and headaches

Many T2 headaches are dehydration. Aim 2.5–3 L total fluids unless your provider says otherwise.

Source: Soma-Pillay et al., Cardiovascular Journal of Africa 27(2), 2016 — Physiological changes in pregnancy

General info — not personalized medical advice.

Reflection

60-second prompt

What feels easier than you expected?

Counter-bias your attention. Notice ease, name it.

Source: Lieberman et al., Psychological Science 18(5), 2007 — Affect labeling

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.