Invisalign information?

ok so i need braces but i dont want braces but i guess i dont really have a choice so i told my dad i have to get invisalign but i was wondering well my quince is aug. 6th and i dont want them for my quince so he said to get them after but i was just wondering how long do they take to get in ? like in know the have to do that impression thing but just after them mail it to invisalign how long do the trays take to come ?