Can I get the post ID during the 'init' or 'plugins_loaded' action?

I REALLY need to get the post ID during the plugins_loaded action if possible due to the nature of the code. You see, the code itself is sending header information! code below

function wpcwv2_plugins_loaded()
{
	global $post;
	$pageID = $post->ID;

	if(is_admin() || is_feed() || is_login_page())
		return;

	$wpcwv2_request = (isset($_GET['wpcwv2']) && !empty($_GET['wpcwv2']) ) ? strtolower($_GET['wpcwv2']) : null;

	if(!$wpcwv2_request)
		return;

	// Switch Requests
	switch($wpcwv2_request)
	{
		case 'js':
				header('Content-type: application/x-javascript');
				//header('Content-type: application/octet-stream');
				//header('Content-Length: ' . filesize($file));

				header('Content-Disposition: inline; filename="wpcwv2.js"');

				// Echo PATH
				echo 'var wpcwv2_wpurl = "'.get_bloginfo('wpurl').'";'."\n";
				echo 'var wpcwv2_url = "'.WP_PLUGIN_URL.'/content-warning";'."\n";
				echo 'var tb_pathToImage = "'.get_bloginfo('wpurl').'/wp-includes/js/thickbox/loadingAnimation.gif";'."\n";
				echo 'var tb_closeImage = "'.get_bloginfo('wpurl').'/wp-includes/js/thickbox/tb-close.png";'."\n";

				exit;
			break;
		case 'message':
				wpcwv2_build_message();
			break;
		case 'log':
				wpcwv2_log($pageID);
			break;
		default: return;
	}

}
add_action('plugins_loaded', wpcwv2_plugins_loaded);

Before you say “use the $post global”, i have to say I already did, and I even var_dump’d it to see what it was giving me, it was all NULL…. aside from a few insignificant integers. I haven’t found a fix for this in the four hours I’ve been pounding on it so if any of you have a solution please let me know. I’m stumped lol…