Question Summary:
Can I avoid pregnancy and go for Hajj?

Question Detail:

I have recently married and my husband plans to go hajj next year along with me.  Is this a valid reason to avoid pregnancy on health accounts till after hajj

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuh.
It is permissible for you to delay your pregnancy until after hajj.¹
And Allah Ta’āla Knows Best
Huzaifah Deedat
Student Darul Iftaa
Lusaka, Zambia
Checked and Approved by,
Mufti Ebrahim Desai.
www.daruliftaa.net
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بدائع الصنائع في ترتيب الشرائع (2/ 334)1
 وإن كان العزل برضاها لا يكره؛ لأنها رضيت بفوات حقها، ولما روي عن رسول الله - صلى الله عليه وسلم - أنه قال: «اعزلوهن أو لا تعزلوهن إن الله تعالى إذا أراد خلق نسمة، فهو خالقها»
 
Jawahirul Fiqh Volume 7 Page 77 to 156 Maktaba Darul Uluum Karachi