Don't worry neha it will! Mine is looking very odd just now, and has been looking perfectly normal in the intervening years since DS was born. I'd forgotten all about the weird belly button effect until it emerged again!
Re washable nappies and wipes- if you are in two minds, you can always just start with wipes. They are ace, you save a fortune, and if it works for you, you can move onto actual nappies. Gateway drug for us (and really convinced DP)...