The original girls of MTV's "Teen Mom" are back. After two episodes, Amber Portwood, Maci Bookout, and Catelynn Lowell are all having problems with their respective lives. Amber and Maci deal with the first day of school, while Catelynn is focused on her pregnancy. 

Amber and Leah 

In the last episode, Gary invited Amber to shop with Leah for her school supplies. It was a great time for the mother and daughter to bond. Later, Gary was seen talking to his brother about his "what ifs" concerning Amber. His brother just told him that if he starts doubting again, he should recall the "old episodes." 

On Leah's first day in kindergarten, she mentioned to her mom that she would meet Kristina after school. Amber got upset and didn't walk Leah to class anymore and then gave Gary the silent treatment. Obviously, she felt jealous despite realizing that she cannot give what Gary has given her daughter. Yet, she felt sad about being left out of her child's life. Later, she called Leah but the latter refused to talk to her. 

Maci and Ryan 

Ryan is still not making an effort to be a part of his son Bentley's life and this frustrates and hurts Maci so much. It was also Bentley's first day of school and she was hoping that she and Ryan would be there for their son. However, it was not a big surprise that Bentley's dad couldn't be there. Even Ryan's father Larry has had enough of his lack of effort. 

In Maci's therapy session, she became very emotional and shared that she is torn between lying to her son or telling him the truth about Ryan. 

Catelynn and Tyler 

Last episode, the gender of Catelynn and Tyler's baby was revealed. They are having a baby girl and she is very happy about it. As for Tyler, he was vocal about wanting to have a baby boy and looked a bit upset when they shared the news. 

The most interesting thing that happened between the two is the argument between Catelynn's pregnancy weight gain.

Tyler said, "I read online that in the first four months you should only be gaining five to nine pounds."

Catelynn then said that she has gained 20 pounds and he said "... you're ignoring it."

She got really upset and said that she'll eat whatever she wants. 

Will Amber be closer to Leah? Will Maci give up on Ryan? Will Tyler realize that what he said was foul? Tune in to "Teen Mom OG" every Monday night on MTV.