Making faces, maybe sucking a thumb.
About the size of a lemon — or a hedgehog, or a cream puff. 8.7 cm (3.4 in), 43 g (2 oz).
What's happening this week. Making faces now — squinting, frowning, maybe sucking a thumb. A fine soft hair called lanugo starts covering the body to keep it warm.
Facial expressions appear. Fine lanugo hair grows. Kidneys start working.
The baby can already squint and frown, even though the eyelids stay closed for weeks yet.
What your partner can do this week: Start the shopping list, not the shopping: add what you'll need and leave the options for later. Pick one conversation you've been putting off and give it half an hour this week. Ask how your partner is feeling — and listen more than you fix.