I was tucking my 4 year old and 6 year old in last night when DS4 asked "but how did you get the baby in there?" This is going back to when i first told him i had a baby in my tummy and all he said was "why?" I told him the baby was growing in there and would be born next year when it's big enough. Last night after DS asked this both DS4 and DS6 now really want to know so 9 year old DS who was standing in the door way was about to tell him in full detail so I told them it was getting late and we'd talk about this later. I feel like 4 and 6 are a bit too young but maybe it's better than leaving them confused, it wasn't long ago that i told DS9