"We decided to start TTC" How?

Katie
Just me being curious. How did it go down? Was it something you both wanted but didn't talk about until one day? Or was it like you sat down finally and had a deep convo?
For me, I had to bring it up and he acted like no big deal lol. Nice guy but so immature he didn't even think of the possibility until I said something. 
How did you guys decide!?