How to create a many-to-many relationship without a pivot table?

Question

Laravel

I am writing an api to which they come

$requestData = [
            "email"        => "[email protected]",
            "login"        => "test",
            "password" => "sdfsdf",
            "url_id"       =>   12
        ];

I want email to have multiple urls and multiple email urls
Wrote models

class Email extends Model
{
    use HasFactory;

    protected $fillable = [
        'email',
        'login',
        'password',
    ];

    public function urls()
    {
        return $this->belongsToMany(EmailUrl::class);
    }
}
class EmailUrl extends Model
{
    use HasFactory;
    protected $table = 'emails_urls';

    protected $fillable = [
        'url_id',
        'email_id',
    ];

    public function emails()
    {
        return $this->belongsToMany(Email::class);
    }
}

I wrote a script to create an entry, but I think that everything is wrong.

$requestData = [
            "email"    => "[email protected]",
            "login"    => "test",
            "password" => "sdfsdf",
            "url_id"   => 12,
        ];
        $email = Email::create([
            'email'    => $requestData['email'],
            'login'    => $requestData['login'],
            'password' => $requestData['password'],
        ]);
        $url = EmailUrl::create(['email_id' => $email->id, 'url_id' => $requestData['url_id']]);

Have I done this correctly? If not, please tell me how