A new baby can change the dynamics of a relationship, and that has certainly become clear for the couples of Teen Mom: Young and Pregnant.

By this point in the series, all five ladies -- Brianna, Kayla, Ashley, Lexi and Jade -- have given birth, and as we’ve seen, the munchkins have changed life for the moms and their partners, for better or worse.

So now that all the cast members are moms (and dads), which twosomes will stand the test of time parenthood? Vote up/down for the most/least likely to co-parent successfully, and keep watching Young and Pregnant Mondays at 10/9c!