Question Summary:
Ghusl compulsory after nocturnal dream? Ejaculation breaks wudu?

Question Detail:

1. Recently i had a situation in which i did not know what to do I woke up in for the fajr prayer and noticed that i had nightfall and i was impure, i could have gone to the washroom and done ghusl but it was late and there was just enough time to pray 2 rakaats farz fajr so i didnt pray...also my mom was forcing me to pray fajr but i couldnt tell her that i was impure so if this kind of situation happens to me agai, what should i do?
2. Does ejaculation break wuzu?

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu `alaykum wa-rahmatullāhi wa-barakātuh.
Nightfall (wetdreams) makes one completely  impure (najis).[1]
In order to purify oneself , ghusl is compulsory. (Bahishti Zewar, pg. 71 – Zam Zam Pub., Ed. 2005)
Complete ghusl entails  water touching the entire body. The mouth and nostrils should also be rinsed during ghusl.[2]
You should try and wake up early enough for Fajr Salah to allow for ghusl if nightfall is experienced.
And Allah knows best.
Mawlana Saeed Ahmed Golaub
Westmoreland, Jamaica, West Indies
Student Darul Iftaa
Checked and Approved 
Mufti Ebrahim Desai
daruliftaa.net