Explain my Deja vu prediction please?

Today i had a "deja vu" but it wasnt just a quick "wow, i just had a Deja vu" ... i predicted the next few events happening in the room, i predicted my mother walking in after my sister turned the TV over, then i said at the same time EXACTLY what my mam said to my sister, then after that i knew i was going to do all that (predict everything) i dont know how i knew this, i just did... i was kindof freeked out, so was the people in the room... so does anyone know how i knew all this, how it happened & also why i knew so much of it... thanks