21 weeks

Your baby now weighs about three-quarters of a pound and is approximately 10 1/2 inches long - the length of a carrot. You may soon feel like he's practicing martial arts as his initial fluttering movements turn into full-fledged kicks and nudges. You may also discover a pattern to his activity as you get to know him better. In other developments, your baby's eyebrows and lids are present now.