First Trimester
Week 6: Baby
Here's everything happening with your baby and your body this week.
Your baby is the size of a
Sweet pea
Length
0.25 in
Weight
< 1 g
Week
6 / 40
💡 Expert tip
First prenatal appointment is usually scheduled at 8–10 weeks. Book it now if you haven
🌱 Baby's development this week
- Facial features forming — eyes, nose, jaw
- Hands and feet as paddle-shaped buds
- Brain growing at 100 neurons/minute
- Liver beginning to produce red blood cells
Science fact
At 6 weeks, the embryo
🤰 Your symptoms this week
Heightened smell sensitivity
evolutionary protection against toxins
Food aversions
often to meat and strong flavors; trust your instincts
Bloating
progesterone slows digestion to maximize nutrient absorption
💛 Changes in your body
- Nausea often peaks this week
- Heightened sense of smell — food aversions common
- Mood swings from hormonal shifts
- Waistline may begin to thicken slightly
💙 Mental health this week
The 6–8 week window has the highest miscarriage risk, which can cause significant anxiety. This anxiety is rational and valid — seek support if overwhelming.
🥗 Nutrition focus
- Choline (eggs, beef) is critical for brain development — most prenatals omit it
- Avoid vitamin A supplements (safe from food sources like carrots)
- Iron absorption doubles in pregnancy — pair with vitamin C
📅 Appointment / test
First ultrasound is often done at 6–8 weeks to confirm heartbeat and dating.
✅ This week's checklist
Eat small, frequent meals — every 2 hours
Book a GP or midwife booking appointment
Start tracking symptoms in a journal or app
Track your pregnancy week by week
Interactive guide · 40 weeks · Fruit size visualizations · Personalized tips
Open Week 6 in Interactive Guide → →