Sooner or later, Jackson is going to find out about his ex-wife's pregnancy. The question is how he will learn about the news. The answer to that will be revealed in the next episode of "Grey's Anatomy" season 12.

Titled "I Am Not Waiting Anymore," the episode is set to provide answers to important questions. For starters, Jackson learns from Arizona that April is carrying his child. His first question, as seen in the "Grey's Anatomy" promo, is why the mother of his baby is not the one breaking the news to him.

In the previous "Grey's Anatomy" season 12 episode, Arizona tried to convince April to bear the news to Jackson but to no avail and it looks like she took the matter into her own hands, putting April in what could very well be the most stressing conflict in her life.

Upon confronting April, Jackson has a lot of questions in his head that came bursting out. He asks how far along April is in her pregnancy and whether or not the pregnancy started prior to the divorce. He is very disappointed about April keeping his own child a secret from him.

April shied away from letting Jackson in on the secret simply because she does not want things between them to be more complicated than they already are. She also does not want to make him feel that she is forcing him into a relationship once more because of their baby.

Meanwhile, the next "Grey's Anatomy" season 12 episode will also see Meredith finally allowing herself to move on from McDreamy by going back to the dating world again.

In the "Grey's Anatomy" season 12 promo, it is hinted that she might try again with Dr. Will Thorpe, who asks her out on a date. Her answer to his proposal will be revealed in the upcoming installment.

Lastly, the episode will also show Andrew proving to his workmates that he is not getting special treatment because of his relationship with Maggie.

"Grey's Anatomy" season 12 episode 15 "I Am Not Waiting Anymore" airs March 24 at 8 p.m. ET on ABC.