I’m a beginner developer so I’m sorry if I’ve made some obvious mistake, but I simply don’t get why my loop for posts is not displaying all of my posts, I created 14 test posts and set the Reading options in WordPress to display latest posts and put the number to 10, however, only 5 posts appear on the first page and when I click on 2nd page in the pagination there’s only 1 post and my footer goes all the way up to the end of the post box instead of staying down on the 2nd page.

 <?php get_header(); ?>


<div class='containter containter--narrow page-section'>
        <?php if ( have_posts() ) : 
            while ( have_posts() ) : the_post(); ?>

        <article id="post-<?php the_ID(); ?>" class='post-item'>
        <h2><a class="post-title headline headline-medium" href='<?php the_permalink(); ?>'><?php the_title(); ?></a></h2>
        <hr>

        <div class='metabox'>Author: <?php the_author_posts_link(); ?> Published on: <?php the_time('d/M/Y'); ?> Categories: <?php echo get_the_category_list(', '); ?></div>

        <div class="post-excerpt content">
            <?php the_excerpt() ?>
            <p><a class='read-more' href="<?php echo get_permalink(the_post()); ?>">Read More &raquo;</a></p>       
        </div>

        </article>
    <?php endwhile; 
    endif; 
    echo paginate_links(); ?>
    </div>  

<?php get_footer(); 

?>