$sticky = [get_option](http://codex.wordpress.org/Function_Reference/get_option)( 'sticky_posts' );
$not_in = [];
 
$args_catsticky = new [WP_Query](http://codex.wordpress.org/Class_Reference/WP_Query)([
        'posts_per_page'=>-1,
        'post__in'  => $sticky,
        'cat'=>'1',
        'fields'=>'ids',
]);
if($args_catsticky->[have_posts](http://codex.wordpress.org/Function_Reference/have_posts)()) {
    $not_in = $args_catsticky->posts;
}


$args_ordinary = array(
        'post_type'=>'post',
        'cat'=>'1',
        'posts_per_page'=>5,
        'paged'=>$paged,
        'orderby'=>'date',
);

if(!empty($not_in)) $args_ordinary['post__not_in'] = $not_in;

$args_sticky = array(
        'posts_per_page' => 5,
        'post__in'  => $sticky,
        'post_type' => 'post',
);