I agree with you. For me it is almost impossible to see the complexity with which even a single cell is made up of and the ways our body works in unison and not believe that there was intelligent design. Could I be wrong? Of course, but if I were to find a watch in the middle of the forest I wouldn't think that nature just put it together. Nature causes entropy and disorder. For dust and cells to somehow turn into the beings we are today is just too large a stretch of the imagination for me.