$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$args_blog = array(
'post_type' => 'post',
'paged' => $paged,
'posts_per_page' => get_option('posts_per_page ')
);
$query_blog = new WP_Query( $args_blog );
if($query_blog->have_posts()) : while($query_blog->have_posts()) : $query_blog->the_post();
$big = 999999999; // need an unlikely integer
echo paginate_links( array(
'base' => str_replace( $big, '%#%', esc_url( get_pagenum_link( $big ) ) ),
'format' => '?paged=%#%',
'current' => max( 1, get_query_var('paged') ),
'prev_text' => __('Prev'),
'next_text' => __('Next'),
'total' => $query_blog->max_num_pages
) );