Willow, Molly can go up to 7 or 8 hrs over night but we are still feeding 3-4 hrly the rest of the time and as i said she CAN go that long but she doesnt always last night she fed at 10, 4, 5.30 and then 7.30. I thought it was maybe because i was sick and my milk had dropped off so much but who knows. With DD1 i only BF for 7 wks and AF didnt come back until she was 6 months.