Pace, Pleaseby Mama Bloom

Week by week · weeks 4–42

Your pregnancy, week by week.

What may change for you, broad development for baby or babies, and the source behind every line — no fruit sizes, no countdown pressure.Updated 27 August 2026

Explore a week

Second trimester

A date is not a verdict

For you

Leg cramps or interrupted sleep can occur around mid-pregnancy. Scheduled appointments and scans differ by care system and individual plan.

For baby or babies

Within the broad weeks 17–20 range, fine hair called lanugo begins covering the body; timing is not an exact weekly milestone.

Every week

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Source receipts reviewed 27 August 2026. General information that Pace, Please has summarised from the public sources named on this page. It is not medical advice, does not assess your pregnancy, and every pregnancy differs. Your care team and your own care plan come first.

If something feels wrong, contact your maternity team now. In an emergency, call your local emergency number.