The Secret Life of the American Teenager Season 3 Episode 1 (The Secret Life of the American Teenager s03e01) with title “Do Over” airs on Monday, June 7th 2010 at 08:00 pm via ABC Family Network.
Here is summary for The Secret Life of the American Teenager Season 3 Premiere :

In the third-season opener, Ben wonders if Adrian is lying about not being pregnant. Elsewhere, Ashley discusses birth control with her doctor. Meanwhile, Jack learns that his parents are moving and Amy is confused by Ben’s behavior.

Few hours after original series aired on TV, online streaming video for The Secret Life of the American Teenager Season 3 Episode 1 usually available on Net and of course, if video available, as soon as possible will show you where you can watch this episode for free.