Unfortunately with DS, his seem to take forever. He only has 4 teeth so far but his top 2 I first noticed on Boxing Day, and they finally came through two days ago! They would come and go, and then they just seemed to sit there for ages. Poor little man had some really miserable nights. His bottom teeth were similar, taking about 4-5 weeks to finally pop through. We use an amber teething necklace too, and his bottom ones didnt seem to bother him at all.