Baby development at week 23
Rapid eye movement patterns emerge. Lungs produce early surfactant ingredients while practicing inhale/exhale motions with fluid — not air yet.
Average size estimates for week 23 are about 28.9 cm and 501 g — roughly carrot. Your ultrasound report and clinician’s dating override any website average.
What you might feel
Swollen ankles by evening are common. Elevate feet when you can and ask your clinician what swelling level should prompt a call.
You are in the second trimester. Two pregnancies at the same week can feel completely different — treat these notes as orientation, not a checklist you must match.
Noticing movement in week 23
Flutters often become clearer around mid-pregnancy, though timing varies widely. You do not need a formal count yet for every pregnancy — casual awareness is enough. When patterns feel regular later, Preglo’s kick counter is ready without a separate app.
What to track this week
- Symptoms, mood, sleep, and energy in your daily log
- Water intake toward a simple daily goal
- Appointment dates and questions for your care provider
- Scan dates and follow-up notes after ultrasound visits
A calm next step in Preglo
Hydration + movement notes in Preglo make patterns obvious across a busy week.
Also useful: due date calculator · all weeks · Preglo features
Nearby weeks: Week 21 · Week 22 · Week 24 · Week 25
Educational averages only — not medical advice. Contact your clinician for symptoms that worry you, bleeding, severe pain, or reduced movements.