Week 6
The first flutter of a heartbeat
Your baby’s heart has begun to beat, even if you can’t hear it yet.
Baby's size this week
About the size of
a lentil
- Length
- 4 mm
- Weight
- 0.4 g
About the size of a lentil, with a teeny-tiny heart starting to flutter.
Sophie reads you this week
A short note, out loud·0:55
What to expect
This week marks a huge milestone: your baby’s heart has started to beat. It’s still too tiny to hear with a doppler, but it’s there.
Your little one is developing primitive facial features this week. Tiny pits where eyes will form, and little bumps that will become ears and a nose.
Your body might be sending you strong signals that you’re pregnant. Nausea, fatigue, and tender breasts are common as your hormone levels rise.
Things to be aware of
Nausea doesn’t always happen in the morning. Many parents find it hits hardest in the late afternoon or evening. Small, frequent snacks can help.
It’s normal to feel exhausted. Your body is working hard to build the placenta and support your baby’s growth.
Spotting is common, but any heavy bleeding or cramping should prompt a call to your provider. Better safe than sorry.
What might happen
Many parents have their first ultrasound around this time. You might see the gestational sac and yolk sac, or even that tiny heartbeat.
If you haven’t already, consider starting prenatal vitamins that include folic acid and DHA. These support your baby’s brain and spinal cord development.
