Answered by Shaykh Yusuf Badat
For women, if our menses fall during Hajj or last ten days of Ramadan, is it okay to use contraceptives to delay our cycle so we can pray and fast on those days?
Jazakumullahu Khayr/ Thank you for your question.
In such situations, it is advisable to consult medical experts. If they assure you that there would be no adverse side effects due to artificially delaying the menstruation, then it would be permissible otherwise not.
Allah Knows Best
This answer was collected from Mathabah.org. It’s an Islamic educational institute based in Canada. The questions are generally answered by Sheikh Yusuf Badat and Sheikh Omar Subedar.