Just wondering what your experiences at 3 months were. I can't remember from ds, but dd who is 3 months today is smiling lots, laughing a bit, starting to make some vowel sounds, but not much, and sucks her thumb a lot. She sort of bats toys on her activity arch, but hasn't really found her feet yet. She is sleeping through the night, and has 2 naps a day, though obviously this varies.