Various masaail of Hajj & Umarah

Q:

1. Could you please let me know after how many days from Eid ul Fitr does Eid ul Adha come?
2. Since Yaum ul Arafah comes only once, why do people in India and Pakistan or other countries only follow the calender dates rather than the exact Arafah day.

Q: Can my wife who I am married to in sharia law. If I tell my wife you can not go for umrah or hajj with out me, can she go with her family against my wishes?

Q: Is it permissible to take pills to stop one's period when performing Hajj?

Q: What does Baytullaah (house of Allaah) mean?

Q: We plan on going for Haj this year Insha Allah. Is it permissible for my wife to use contraceptives to avoid falling pregnant. We have been accredited.