URI Segments and links

Hi,
I have a problem in redirecting my links after using links with 3 parameters. That is, controller , action and parameter . Ok using a link like this <a href="House/register/1">Edit the house</a>
I walk normally on the page and the right value ( 1). But my mistake is when I click a button on this page to return to the management page "House/index". This button there is this link <a href="House">Come back to the management Houses</a> , which would trigger a House controller and the index action. Ex.: www.web.com/House/index . But my URL is www.web.com/House/register/House, ie the link is becoming a parameter and not a redirect to the controller.

PHP Code:

<?php

if (!defined('BASEPATH'))
    exit('No direct script access allowed');

include_once(APPPATH . 'controllers/IdwellerController.php');

class House extends IdwellerController{

    public function __construct() {
        parent::__construct();
        $this->load->helper('url');
        $this->load->model('houses');
    }

    public function index() {
        $this->setTitle('House management');
        
        $dataOfAllHouses= $this->houses->returnAllHouses();
        
        $rows = array();
        foreach($dataOfAllHousesas $arrayOfValues){
            $rows[] = $arrayOfValues;
        }
        $dataToView= array(
            'bloco_lista_residencia' => $rows
            );

        $this->pushToScreen($dataToView);
    }


    public function register(){
        if($this->uri->segment(3, 0)){
            $this->setTitle('House Edit');
            $idHouse= $this->uri->segment(3,0);
            $dataToView= $this->houses->returnDataHouseOfId($idHouse);
        }
        $this->pushToScreen($dataToView);
    }

}