Does a divorce that occurred as a single pronouncement to a wife who is three months pregnant count, and do the wife's attempts to entice her husband after the divorce constitute a return (reconciliation)?

A pregnant wife is divorced with a single, revocable pronouncement. It is preferable to take her back as long as cohabitation is possible. You also owe expiation for an oath, for the Prophet, peace and blessings be upon him, said: "Whoever swears an oath and then sees something better than it, let him expiate for his oath and do it." The return (to the marriage) occurs by the husband uttering it, by agreement, and by an action accompanied by intention, according to a difference of opinion. It does not occur merely by the wife's desire, or by her cohabiting with him and sleeping with her without touch or intimacy.