Answer:
(Fatwa: 644/541/B=1432)
You (husband and wife) must go to perform hajj and take your mother with you. You can handle the matter of marriage after returning from hajj. If you find any proposal before going to hajj, you can go after performing the nikah of the girl. Otherwise, you can go without it as well.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
