Oldest is 6 and I wonder if she has guessed that there is something going on, I had quite a few hospital trips in the beginning and it was quite stressful. I am not sure what the younger 2 will make of it all, they are nearly 4 and 2. It wasn't an issue last time as they older 2 were so young when I fell pg with DC3.
I always thought that it was best to wait as long as possible before telling them. I'm only about 14 weeks so its fairly early but I'm worried that DD is getting unsettled because she might be aware that something is going on.
When did you tell them?