Help!! Baby Planning?

Hello ladies :) I am currently 12w&3 days pregnant :) The BD and I are not together right now, he just attends the doctor appointments and anything that has to do with the baby. I am wondering when is a good time to sit and discuss things like the financial aspect of having our child and how we are going to work it at the very beginning, like is he staying at my house for a little bit to help with the new baby? Things like that have been running through my head, any advice? Any other things that you know of that are important to talk about? Thank you