Congratulations!!! Happy & Healthy 9mos!
I would wait until 12wks if that makes you more comfortable. (I'm one of those that peed on the stick and told everyone! haha) anyways I think it's the norm to wait....
My husband and I were planning on starting for #2 at the end of this year and I didn't know how to go about it in regards to DC.....so I might be following you to see what you do! haha