Answered by Shaykh Faraz Rabbani
Would it be permissible to take birth control to stop her menstruation in order to avoid menstruation during Hajj?
Walaikum assalam wa rahmatullah,
1. Birth control pills are in of themselves permitted. They are, thus, permitted to takethough superior to avoid to the extent of their harm.
2. It is permitted to take such birth control pillsand other period-delaying medicationto delay one’s period during one’s Hajj. However, it is best to let one’s period run its course. The only action of Hajj directly affected by menstruation if tawaf, and this is only significant with regards to the main obligatory tawaf (tawaf al-ziyara), which is not permitted to be performed in a state of major ritual impurity, and if unperformed leaves one’s Hajj unperformed and keeps one in a state of ihram. [Ibn Abidin, Radd al-Muhtar]