There are a lot of answers on how to count users posts by using:
<?php
if ( is_user_logged_in() ) {
global $wpdb;
$user = wp_get_current_user();
$where = get_posts_by_author_sql( 'page', true, $user->ID );
$count = $wpdb->get_var( "SELECT COUNT(*) FROM $wpdb->posts $where" ); ?>
//option 1
<h2>Hey <?php echo $current_user->display_name ?>, check your page here: {page title with link to page} </h2>
<?php } else { ?>
//option 2
<h2>Welcome <?php echo $current_user->display_name ?>, etc.. text with tags etc.</h2>
<?php } } else { ?>
//option 3
<h2>text with tags etc.</h2>
<?php } ?>
But since users can also create pages, how does one get the count of current user's pages in a similar situation as the code above?