you transplanted an unsprouted seed? just becareful not to over water in that context... peat is usually sopping. water and wait upto 7 days in some cases before you need to again. if it is light, water it. feel the weight, make sure you don't keep it sopping wet, which is a danger with peat.
i quick using peat plugs. when you tansplant to soil or coco, it just wicks up all the water near it and becomes a sopping wet for long periods of time and rarely dries a bit... ripe for issues.