Skip to content
Ten Moons
Pregnancy home

Second trimester

Week 17

23 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

Fat stores begin

About 13 cm. Brown fat starts laying down — future temperature regulation.

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

Body

What's changing in you

Stretchier ligaments

Relaxin softens connective tissue. Easier on the hips, riskier for ankle rolls. Walk on stable ground.

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

General info — not personalized medical advice.

Brain

Maternal brain

Body image renegotiation

Becoming a body that grows another body is a real psychological task. Mirror-time can intensify it.

Source: Athan, Matrescence framework, Columbia University (2011–present)

Bond

You & baby

Belly-mapping rituals

Notice where you feel movement when it starts. Over time, you'll know shapes, rhythms, preferences.

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

Partner

For your partner

Compliment the body, not despite it

Partner positivity about the pregnant body is correlated with maternal body satisfaction.

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

Movement

Move with care

Glute strength is gold

Bridges, banded walks, step-ups. Strong glutes carry a growing belly and protect the low back (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.

Reflection

60-second prompt

How do you talk to your changing body?

Notice the words. They become a soundtrack.

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.