Teen Mom OG - Season 9

Mackenzie tries to figure out where she stands with Josh, Cheyenne starts something new with an old flame, and Catelynn and Tyler struggle with their decision to send Nova to school.

Catelynn works toward becoming a certified microblading artist, Maci struggles with her decision to send Bentley to counseling, and Mackenzie accepts a job offer in Florida.

Mackenzie changes her plans due to her dad's health, Amber joins Gary's family for a trip, Cheyenne's friends question her romance with Zach, and Catelynn considers having another baby.

Catelynn and Tyler make a chore chart to help curb Nova's entitled behavior, Mackenzie delays her move for her dad's surgery, and Maci and Taylor feel Jen and Larry knowingly deceived them.

Catelynn and Tyler try to grow their family, Cheyenne and Zach discuss getting a house together, and Mackenzie clashes with Josh about her move to Florida.

Mackenzie and her kids arrive in Florida, Cheyenne reveals major news at her birthday celebration, and Catelynn considers her next move after becoming a certified microblading artist.

Tyler and Catelynn talk to Nova about her personal bubble, Mackenzie adjusts to life in Florida, Maci has the birds and the bees chat with Bentley, and Cheyenne gets an ultrasound.

Cheyenne and Zach deal with pressure to get married before the baby arrives, Catelynn and Tyler register to vote for the first time, and Amber faces criticism from Leah for her absence.

Catelynn and Tyler worry about the results of Nova's standardized test, Mackenzie experiences her first birthday without her mom, and Maci copes with the aftermath of a traumatic event.

Cheyenne finds a way to promote racial justice, Tyler learns his sister has relapsed, and Leah's strained relationship with her mom is worsened when Amber skips her birthday party.

Cheyenne is nervous for the results of Zach's genetic test that will determine whether their unborn child will have VLCAD. After not going to Leah's birthday party, Amber tries to repair the damage caused by her absence.

Cheyenne has a gender reveal party and gets her genetic testing results, Ryan attends a therapy session, Catelynn gets good and bad news, and Leah keeps Amber at arm's length.

Amber opens up about her strained relationship with Leah, Cheyenne talks about her pregnancy and co-parenting with Cory, and Maci and Taylor voice their frustrations about Ryan.

Taylor's argument with Ryan's dad escalates, Mackenzie addresses her offensive tweet, Catelynn talks about her pregnancy, and Gary and Kristina discuss their fraught relationship with Amber.

Cheyenne and Zach have a blowup after a doctor's appointment, Catelynn and Tyler take a test to determine the sex of their next child, and Mackenzie stages a health intervention for her dad.

Catelynn is wary of the new treatment Tyler wants to try for his bipolar disorder, Amber wants to go to therapy with Leah, and Cheyenne gets upset at Cory for putting work ahead of Ryder.

Cheyenne has a family meeting after she gets shocking news, Tyler begins therapy with Catelynn's support, Maci works on facing her deepest fear, and Mackenzie focuses on Broncs's behavior.

Maci and Taylor question whether Maverick is ready to move up to kindergarten, Amber tries to reconnect with Leah, and Catelynn and Mackenzie enjoy a double date in Florida

Amber reunites with Leah, Catelynn gets her first microblading clients, Maci misses her alone time with Bentley, Cheyenne surprises Zach, and Mackenzie brainstorms ideas for Broncs's summer.

Cheyenne and Zach plan a special baby sprinkle, Catelynn talks to her little brother about safe sex, Mackenzie grows her fitness business, and Maci confronts her fears.

Catelynn talks to Tyler about letting Nova in the delivery room, Mackenzie consults a parenting expert about her kids' rebelliousness, and Cheyenne tests Zach's paternal instincts.

Catelynn and Tyler wean Vaeda off her pacifier, Amber has trouble accepting a less-than-perfect grade, Maci talks to Bentley about her PTSD, and Cheyenne gets a surprise at her baby shower.

Catelynn and Tyler reflect on Carly's birthday, Maci focuses on her health, Cheyenne prepares for Ace's birth, Amber spends time with Leah, and Mackenzie contemplates Jaxie's education.

Mackenzie loses her cool with Josh, Gary consults a parenting coach, Cheyenne's contractions begin, Maci encourages Tyler to talk to her therapist, and Catelynn and Tyler visit with Carly.

Mackenzie's father visits, Catelynn and Tyler long for alone time, Cheyenne gives birth to Ace, Maci and Taylor butt heads, and Gary has a breakthrough about therapy.

Mackenzie's father makes an offer, Cheyenne explores postpartum self-care, Maci and Taylor plan a getaway, Gary attends a therapy session with Amber, and Catelynn gives birth.

Catelynn, Cheyenne, Maci and Amber reflect on their year with Dr. Drew and Nessa, then give advice to Young + Pregnant mothers with similar backgrounds to the OGs.

Maci opens up about having a miscarriage, Mackenzie and Josh reveal how they've been coping with marital issues, and Cheyenne gives Kayla advice about being in a trusting relationship.