Second trimester · Month 5 of 9

Week 18: You may begin to feel movement

Some first-time parents begin feeling movement now, while others will not for several more weeks.

Month 5 · Week 1822 weeks to the due-date marker
Month5 of 9
Week18
PeriodSecond trimester
This monthHalfway landmarks

In 60 seconds

Your short plan for this week

Do now

Notice possible first movements without setting a quota; they may feel like taps, flutters, bubbles or a small muscle twitch.

Coming up

The anatomy assessment is commonly offered around weeks 18–22; confirm your appointment window and the purpose of the scan.

Pause and ask

Do not use someone else's movement timeline as a deadline. Ask your care team when they expect you to call if you have felt none.

What you may notice

Your body and how you may feel

Some first-time parents begin feeling movement now, while others will not for several more weeks.

What is happening

Baby’s development this week

Hearing structures and movement patterns are developing.

Plain-language examples

What this means in real life

First-time parents often recognize movement later than people who have been pregnant before. Placenta position and dating can change what is felt.

A short checklist

What to do now

  • Notice possible first movements without setting a quota; they may feel like taps, flutters, bubbles or a small muscle twitch.
  • 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

  • Do not use someone else's movement timeline as a deadline. Ask your care team when they expect you to call if you have felt none.
Check food, medicines, exercise and everyday activities →

What may be coming up

Appointments, tests and decisions

The anatomy assessment is commonly offered around weeks 18–22; confirm your appointment window and the purpose of the scan.

Common planning window

Mid-pregnancy anatomy assessment

Confirm the offered window and how results will be explained.

Common planning window

Review pregnancy vaccinations

Confirm current and seasonal recommendations with your clinician.

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

  • Keep expectations gentle—movement may be felt internally for weeks before it can be felt from the outside.

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