Q:
A: It is prohibited to fast while menstruating, pregnant or nursing because these conditions cause a woman's body to loose minerals and fluids. The prohibition from Allah is part of His Mercy upon women so that not only are you given relief from fasting, but you gain the rewards for going through the hardships of reproduction. Do not fast while you are menstruating, it is unhealthy and will not be counted as part of your religious obligation. When my wife makes up her fast from Ramadan due to menses, I will fast with her. See if you can get a fasting buddy to help you out in this way when you make up the days after Ramadan is completed.