Entirely up to you, my friend!
I still have OG, so I ran one bottle of Elite and jumped back on OG and will do Elite again in another month or 2 when I have enough to run 3 bottles of it with 3 bottles of BMP and BRITE lol. And I'll probably run a low dose AI at like 1/3 or 1/2 recommended dose for most of the run because I personally have some flare-up history and want to be safe, but I'd say you're probably fine for a couple months before starting anything if you're wanting to save cash.