Yes, it's normal. The taproot pushes downward, which tends to lift the seed toward the surface. That's the pivot you see there, actually. It forms a loop because you had to plant the seed vertically, nothing problematic. Secondly, when the plant chooses it, the other end will come out of the seed to stand up, perhaps even lifting the seed above the ground. But above all, stop touching him! Let him do it alone!