A husband said Talaaq twice to his wife.

Answer

If two Talaaqs have been issued, then as long as the Iddat (3 menses cycles) has not expired, the husband can take his wife back without the need to perform another Nikah. Nevertheless, these two will remain suspended. In future if the husband issues one more Talaaq, then this one plus the suspended two will equal three, which finally and irrevocably terminate the Nikah. Then the couple will not be able to reconcile. Although issuing Talaaq during the menstruating cycle is not permissible, the Talaaq nevertheless is valid.