For fans new to MTV’s 16 and Pregnant franchise (including the Teen Mom and Teen Mom 2 spin-offs), it may be a bit confusing to decipher who came from which season of the reality series that started it all.

We may be able to help you out a bit there. The first season of 16 and Pregnant aired summer 2009. Each episode followed the story of one high school teen’s pregnancy, birth and aftermath. MTV launched the spin-off series Teen Mom in December 2009, and later in 2011, Teen Mom 2, both of which follow a format of four separate Teen Mom’s stories per episode.

So who was in the original 16 and Pregnant cast? Season one featured Maci Bookout, Farrah Abraham, Amber Portwood, Ebony Jackson-Rendon, Whitney Purvis, and Catelynn Lowell — with Maci, Farrah, Amber, and Catelynn chosen to star in the spin-off.

Which season of 16 and Pregnant was your favorite?