Does a pronouncement of divorce count as a divorce, when a man utters the word "taliq" (divorced) without the intention of divorce, but merely with the intention of quarreling, knowing that she is menstruating and has been previously divorced twice and taken back?

If your tongue slipped and you uttered a divorce without intending it, then the divorce does not take effect, and your wife is not forbidden to you. However, if you intended to pronounce a clear divorce, then it takes effect, even if you did not intend its consequences. In this case, if you have divorced her twice previously, then she becomes forbidden to you and is not permissible for you again until she marries another man in a valid marriage, and then he divorces her after consummating the marriage. Menstruation does not prevent the occurrence of divorce according to the majority of scholars.