When to start...

[newcdmommy29]

DD is 19 months old and will grab at her diaper now. I'm thinking it's before she poops but not certain. Im wanting her to lead us in this process so I'm looking for signals from her. Does that "count" as a signal? I'm 17 weeks pregnant and would love to wait until after the next baby comes. Is that a horrible idea? I don't want to stunt her in any way but I don't want to pressure her either.