Baby development at week 6
The embryo lengthens and limb buds begin. On some early scans, a rapid flicker marks early cardiac activity — exciting, but not every pregnancy is scanned this early.
Average size estimates for week 6 are about 0.4 cm and too early to weigh meaningfully — roughly sesame seed. Your ultrasound report and clinician’s dating override any website average.
What you might feel
Nausea and food aversions may intensify. Small, frequent meals and hydration often help — follow what your clinician recommends.
You are in the first trimester. Two pregnancies at the same week can feel completely different — treat these notes as orientation, not a checklist you must match.
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
A calm next step in Preglo
Track water and how you feel day to day. Patterns matter more than any single rough morning.
Also useful: due date calculator · all weeks · Preglo features
Nearby weeks: Week 4 · Week 5 · Week 7 · Week 8
Educational averages only — not medical advice. Contact your clinician for symptoms that worry you, bleeding, severe pain, or reduced movements.