if you cannot get a hold of Cal Mag Plus quickly you might be able to find Calcium Hydroxide and mix it a saturated solution of it with some epsom salts from the drugstore. Calcium Hydroxide is commonly available as pickling lime (stores with canning supplies) or as Kalkawasser (available in pet stores).that's more than enough time to fuck my plant up and turn hermie if this doesnt get solved right? By couple you mean another month u think?
A small amount of that may be enough for you to get by until you can get some Cal-Mag plus shipped in.