Fasting

A person can intend to fast Ramadan before the break of dawn, even if he is in the state of sexual impurity. For voluntary fasting, one can intend it whenever he wants during the day, providing that he didn’t drink or eat anything after the break of dawn.

This is permissible providing that this does not exceed 50% of the month.

You were wrong in continuing. The minute you get your menses, your fasting is broken. As it is voluntary fast, you don’t have to make up for it.

You must make them up before the coming Ramadan.

If it doesn’t delay his recovery or if it is not hard on him, he may fast.

There is no preference in the Sunnah for fasting this month. You can fast Mondays, Thursdays and the white days.

If this is the voluntary fasting you can go ahead but if she is fasting her missed days from ramadan you are not allowed to approach her.

As long as you don’t have money, you can fast.

You can fast on one meal only if you are too full. You can make your predawn meal only water and some dates.

Remake this day as you should have stopped the minute you heard the Athan.