Why this doesnt delete the last element from a sll c++

i cant seem to delete the last element from a simple linked list with this implementation. What am i missing?

void MyList<T>::deleteE(int poz) {
    auto nCurent = head;
    int lg = 0;
    while (lg < poz || nCurent->next != nullptr) {
        nCurent = nCurent->next;
        lg++;
    }
    if (poz == 0) {
        auto aux = this->head;
        this->head = head->urm;
        delete aux;
    }
    if (nCurent->next == nullptr) {
        delete nCurent;
    }
    else {
        auto aux = nCurent->next;
        nCurent->next= aux->next;
        delete aux;
    }
}