Yesterday he was 11 weeks old. He still has a bit of a head cold and now the cough is a dry one rather than a chunky one. He is also now 26 inches. He has quite a long torso and will outgrow the 6-9 month one-piece outfits probably around 3 months, since we have another growth spurt coming up. I think I will be buying separates from now on, because he fits perfectly in 3-6 month pants and 6-9 months pants are a little long. But for tops & one-pieces that snap below the crotch I need 6-9 months, which will soon be outgrown. So, he will be in 9-12 month tops soon and 6-9 month bottoms. All 4 of us have long torsos, so this is not surprising.