So I had a couple of vials of White Labs American Farmhouse blend that I never got around to using after buying them over the summer. Yesterday (October 14th)I was looking in my fridge and noticed that one of the vials expired Oct 2nd, and the other expires today (oct 15). So I brewed up a 3 gallon batch to use them in yesterday, OG of about 1.052. I figured that even though the yeast is expired, the Brett in the blend would help ferment the beer out. But now it's been about 20 hours since pitching, and fermentation hasn't started yet. Should I pitch some more yeast, or just wait for the Brett to do its thing?