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The NCAA rules are available online at
http://www.ncaa.org Here is what you need to know:
BR-90 RULE 4-66/DEFINITIONS
A.R. 38. Is it traveling when a player (a) falls to the playing court while holding the ball; or (b) gains control of the ball while on the playing court and then, because of momentum, rolls or slides, after which the player passes or starts a dribble before getting to his or her feet?
RULING: In (a), yes, because it is virtually impossible not to move the pivot foot when falling to the playing floor. In (b), no. The player may pass, shoot, start a dribble or call a timeout. Once the player has the ball and is no longer sliding, he or she may not roll over.
When flat on his or her back, the player may sit up without violating. When the player puts the ball on the floor, then rises and is the first to touch the ball, it also is traveling. When a player rises to his or her feet while holding the ball, it is traveling. When a player falls to one knee while holding the ball, it is traveling if the pivot foot moves.