ABoooo on "blog posts"

Hi guys,

I have a problem with blog posts. I've setup a normal Blog page where I only show posts from a "news" category and now I would like to have a second blog page where I would show only posts from category "references". So far so good. Problem is with how many posts should be posted on one page. In my case 7, but when I enter 5 new posts in a second category, then I have on my Blog page only two posts. It looks like it has something to do with an input order although I hook up only on a category. Any idea why this happens?

This is my Blog page code

if (have_posts()) :
   			while (have_posts()) : the_post();
			   if ( in_category( 'news' )) {
      				echo '<span class="date">';
					echo get_the_date();
					echo '</span><br/>';
					echo permalink_anchor();
					echo '<br/><h4>';
					echo '<a class="permaLink" href="';
					echo the_permalink();
					echo'" title="';
					echo the_title_attribute();
					echo'">';
					echo the_title();
					echo '</a>';
					echo '</h4><br/>';
					echo get_the_content('<br/><br/>Read more...');;
					echo '<hr/>';
			  }
   			endwhile;
		endif;

Thanks for your help