TTC very soon.. Any tips?

Bron • TTC our rainbow baby 🌈 👶🏻
So my SO may be getting a promotion at work and he says that if he gets it, we can TTC sooner than we had planned for our rainbow baby. We didn't actively try last time, it kind of just happened. 
Anyway, I was just after some tips for when we start trying. I.e- what supplements do you guys use? What ovulation tests do you prefer etc.. Any input welcome! :)