Only a DNA test can end the war between grandmothers Lisa and Mehkia; Lakisha's boyfriend vanished, after she told him she was pregnant; Rebecca and Brandon, who grew up in foster care, think they have found their biological father.

Updates on whether past guests have reconciled their differences or gone their separate ways, including Markia and Andrew from November 2015 and Charity and John from 2006.

Lakeisha, 30, says a teen basketball player, with hopes of joining the Navy, is the father of her infant son; Fuzzy began suspecting that Brooke's son is not his, when she refused to give the child his last name.

James says he saw text messages stating that he is not the father of Keyonna's child; Betsey implores her daughter's fiancé to get paternity tests for their children.

A woman wants to know if her fiancé is cheating on her with their babysitter; a woman worries that her fiancé will pass on his philandering traits to their two sons; a woman suspects her fiancé is living a secret sex life.

Parents want proof that their son is the father of a woman's children; a woman tells her sister's boyfriend that she's a cheater and he's not her daughter's father.

A woman and her son don't believe he's the father of a woman's baby; a man takes a DNA test to see if he has four more adult children.

In the Season 19 premiere, a man denies he's the father of a younger woman's son; a woman claims her estranged husband is her son's father; a man says he's not the father of his ex-girlfriend's twins.

Past guests discuss their journeys, from the moment they contacted the show to the moment they received the results that changed their lives

Amber suspects that her first love is paying women for sex, and his cousin says she caught him holding hands with someone; Ebony wants to know if her husband is stepping out on her; Brandi fears that her fiancé is cheating with both women and men

Promiscuous teen Bethany wants to prove that her 44-year-old boyfriend is the father of her son; young Candice and her mother must raise a child while the father plays video games, watches TV and plays basketball

Taylor's ex-boyfriend and his new girlfriend insist he is not the father of her child; the man who inspired Christina to turn her life around now denies her baby

Linda says her 19-year-old daughter, Savana, is in a toxic relationship with her boyfriend; D Vac's girlfriend found five homemade sex videos of him with other women on his phone

Scotty says he will not do a thing for young Kaitlyn's child unless a DNA test tells him he is the father; Travon says his girlfriend is a liar and both of her children belong to her ex

Amanda accuses her best friend's man of attempting to seduce her; Michelle says her racist mother-in-law and sister-in-law are trying to ruin her marriage by telling lies about her

Reneil refuses to help raise a child he does not believe is his; Lashanda wants to prove to her ex that he is the father of her two children; Melissa says her former friend has put her boyfriend against her and their children

Terri suspects that her husband has been using a new apartment as a secret love den for his mistress; Jay's cheating may end his marriage to Mary for the second time

Tonya got pregnant around the time she was "on a break" from her husband; Dante doubts he is his Fiancé's baby daddy because he knows she cheated on him

Updates on some of the wildest stories of the 18th season: what happened to guests after they received the results

A paternity test determines whether Dustin will be with his wife or his girlfriend; David denies his ex's 2-month-old daughter

Chaminque thinks her aspiring-rapper fiancé is cheating; finding pictures of a woman's private parts on her husband's phone causes Jessica to doubt his fidelity; Omar's sister thinks his girlfriend is pinning another man's baby on him

Laquandra needs a DNA test to resolve a love triangle; Ashley and Joey's marriage problems; Cameron claims the child is too white to be his

A look back at shocking, surprising paternity stories

Christie fears that her fiancé is involved in an ongoing affair with his ex-girlfriend; Katrina and Destiny suspect that their men -- who are brothers -- have secret threesomes with other women