Belidos is correct you are a new user until you have 3 approved posts your posts will require approval by staff before they can be seen. That 3 includes ones you edit for if you have 3 posts but you edit one it will count as having only 2 approved so your edited post would need approving.
Hope that makes sense.
Windows 7 Pro, Intel i7 3.8 GHz (Passmark: 9021), 16GB DDR3, NVIDIA GTX 780 4GB Superclocked (Passmark: 8056)