OK, so I've read over and over that airlock activity (bucket fermenter) is not especially reliable. I'm on my 5th batch now, and this is the first time I haven't noticed activity in the airlock. Brewed it on Saturday, and no activity as of last (Monday) night. There does seem to be krauzen forming, but I didn't want to remove the lid, so I just peeked through the airlock hole. Not 100% sure how much if any, though. I am planning on transferring to secondary after a week. It's a pumpkin ale, so I wanted to try to let it settle more before bottling. I will check for final gravity at that point, which should be around 1.012. If the gravity still reads the same as OG (1.050) or only slightly less, is it fine to pitch more yeast at this point, or am I pretty much screwed for this batch?