Answer
(Fatwa: 1020/647/H=1433)
(1) Recite Surah Quraish 11-11 times after each salah with durood 11-11 times before and after.
(2) Before going to bed both of you should recite the first Ruku of Surah Maryam in the state of wudhu three times with durood 3-3 times before and after and then supplicate. May Almighty Allah bless you with pious child; provide you with the blessings of both the worlds and save you from all problems! Amen!
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband