.....I did tap on one egg that was at the edge of her feathers....
Don't worry about eggs peeking out from under a hen. Setting hens move, turn, shuffle, and re-shuffel their eggs constantly. I have forgotten how many times a day that a hen turns or moves each egg but it would in no time wear out the egg turning machinery in an incubator, that is if the incubator tried to keep up with the hen.
Also put a capital X on one side of the egg and a capital O on the other or opposite side or flank of the egg. This helps you keep up with which eggs have been turned during storage or incubation and which eggs have not. Don't forget to properly DATE each and every egg so that you can set only the freshest eggs and enjoy the older eggs for frying, baking, and boiling. The rule of thumb is that a hen can satisfactory incubate 15 of her own eggs or eggs that are the same size as the eggs that the hen lays.
The best hatching results are achieved by using a flat pointed shovel to cut out a chunk of turf a little bigger than the interior of the nest. This turf is put grass side DOWN in the bottom of the nest and any straw etc is added on top of the turf. Now you have a natural cup shaped nest to hold the eggs. After the hen begins laying and just before you think that she will turn broody, pour about 1/2 to one cup of water around the inside edges of the nest to replenish the moisture in the turf. This is to ensure that there is sufficient moisture or humidity present in the nest to keep the eggs viable and help the peeps shed the membrane when they start hatching. Remember that the Red Jungle Fowl, the wild ancestor of our chickens is a ground nesting bird and this turf trick is intended to mimic nature.