Thinking about sewing your own bra? If you're unsure about where to start, Cloth Habit is a great resource. There's plenty of useful advice for materials and patterns.
If you're looking for a bra pattern in particular, Cloth Habit blogger Amy has a few suggestions here: http://clothhabit.com/2012/11/bramaking-sew-along-prep-pattern-choices/
Good luck and have fun!