Ollie did the hand sucking a lot, we now use a dummy to pacify him if nothing else works and he's tired. i didn't want to but he's actually happier with it, he just wants the comfort and he's not using me for that! he uses it lass now already, but i'll keep it around til he's 6 months or so, it means he self soothes himself to sleep in the evenings too which is amazing! We get the odd green nappy, i don't worry and neither does the hv if he is gaining weight along his growth curve. I would only start expressing once you are ahppy bfing is ok, and thats up to you. 3-4 weeks was it for us, when i knew we were doing ok and supply seemed well established. I don't express much, enough for DH to do a feed a couple of times a week, so a couple of ounces daily if i can, keep inthe fridge and then transfer to the freezer after 3 days if we aren't going to use it straight away. It also means we have stocks for if we want to go out on a night and leave him with mil or my mum. He now eats 8 oz in a feed, so don't underestimate how much he might need if you start expressing. Hope its going ok, I find nights the hardest still too xxx