Vocal cords begin to form
Baby this week: about 7.4 cm — crown to rump · about 23 g
≈ 7.4 cm — about the size of a plum
Illustration enlarged for clarity — the amber marker shows true relative size
Your baby this week
- Vocal cords start to form, though there's no air yet to make sound
- Fingerprints are starting to form as tiny ridges appear on fingertips
- The placenta is now fully functioning, taking over hormone production
- The fetus can make sucking motions with its mouth
Your body this week
- Many people notice an energy rebound as they move into the second trimester
- Round ligament twinges — quick stretches on the side of the belly — can start as the uterus grows
This week's tip: If nausea has eased, this is a good stretch to focus on regular, balanced meals and gentle movement.
When to get help now
Call emergency services now or go to an emergency department now if you have sudden, severe tummy pain, pain in the tip of your shoulder, feel very weak, faint or dizzy, or have heavy bleeding that soaks a pad soon after putting it on. For lighter bleeding or spotting, or pain low down on one side, contact your doctor, maternity unit or an early pregnancy unit today.
Sizes and milestones are typical ranges — every pregnancy runs on its own clock. Educational content; your prenatal care team's guidance always comes first.