Secondary Infertility - newbie needs info

Sara • Momma to AAG 🧒🏻 💙 & CDG 👶🏻 💙

Hi all. Looking for some info and tips. We have a 21 month old we conceived the first month really without even trying. We began trying for number 2 eight months ago. I’m 35 so I met with a fertility specialist/RE two weeks ago for next steps. Period arrived today so we will go through a round of fertility testing and clomid challenge this month. Looking for some info from anyone who is a step or two ahead of us on what to expect and tips for getting through this! Thanks!