Second trimester · Month 4 of 9

Week 15: Movement is becoming more coordinated

A changing centre of gravity and looser joints make comfortable, steady movement important.

Month 4 · Week 1525 weeks to the due-date marker
Month4 of 9
Week15
PeriodSecond trimester
This monthA new stretch

In 60 seconds

Your short plan for this week

Do now

Adjust one repeated strain: raise a screen, add back support, split lifting loads or change how long you stand at work.

Coming up

Use the next visit to ask what aches are expected, what self-care is reasonable and what would need assessment.

Pause and ask

Avoid breath-holding and unstable positions when lifting; ask for a workplace or physiotherapy assessment if pain is building.

What you may notice

Your body and how you may feel

A changing centre of gravity and looser joints make comfortable, steady movement important.

What is happening

Baby’s development this week

Bones and muscles continue developing; movements are becoming more coordinated.

Plain-language examples

What this means in real life

Pregnancy hormones and a changing centre of gravity can make familiar tasks feel different before the bump looks large.

A short checklist

What to do now

  • Adjust one repeated strain: raise a screen, add back support, split lifting loads or change how long you stand at work.
  • Stay active in ways that feel stable and are appropriate for your pregnancy.
  • Learn what movement changes should prompt a call later in pregnancy.

Pause and check

What not to do—or what to ask first

  • Avoid breath-holding and unstable positions when lifting; ask for a workplace or physiotherapy assessment if pain is building.
Check food, medicines, exercise and everyday activities →

What may be coming up

Appointments, tests and decisions

Use the next visit to ask what aches are expected, what self-care is reasonable and what would need assessment.

Common planning window

Understand screening choices

Ask what each screening test can and cannot tell you before deciding.

For the support person

One useful thing a partner can do

  • Take the awkward loads—heavy shopping, low laundry baskets or repeated carrying—before pain forces the conversation.

Contact your care team

Contact your doctor or maternity team promptly

Some concerns need advice before the next routine appointment even when they do not feel like an emergency. If a symptom becomes severe, sudden or frightening, use urgent care instead.

See when to contact care

Urgent or emergency

Urgent signs during pregnancy or within a year after birth

Get medical care immediately for these symptoms. The list is not exhaustive; if something feels seriously wrong, seek help.

Open urgent warning signs