First trimester
Pregnancy Week 6
Your baby is about the size of a lentil.
Size
lentil
Length
4 mm
Weight
< 0.01 g
Baby in week 6
Tiny limb buds appear. Facial features start forming. The heartbeat may be visible on ultrasound.
What you may notice this week
Nausea often peaks around now. Mood swings, breast tenderness.
Tips for week 6
- Ginger tea and crackers can help with nausea
- Continue prenatal vitamins
- Avoid hot tubs and saunas
Tools that pair with this week
Due Date Calculator
Estimate your delivery date by last period or conception date. Naegele’s rule plus cycle adjustments.
Week Tracker
See exactly how many weeks and days pregnant you are, plus your trimester and key milestones.
Contraction Timer
Tap once to start, once to stop. Tracks duration, frequency, and pattern over time.
Ovulation Calculator
Find your fertile window based on your cycle length. Plan or avoid with confidence.
Baby Name Generator
Filter by origin, style, length, and starting letter. Boys, girls, and unisex.
Growth Percentile
Plot your baby’s weight, length, and head circumference against WHO percentile curves.