Answer
(Fatwa: 6144/1736=B/1429)
If her health is weak, she unable to bear the hardships of pregnancy, she fears unbearable troubles in case of pregnancy, or any religious Muslim expert doctor diagnoses it, then in all such cases, it will be allowed to use contraceptives temporarily like pill, condoms, ointment etc for the recovery of health. If there are no such cases, then it will not be allowed to use these contraceptive methods temporarily as well, and it will be against the will of the Shariah.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband