If the JJKN storyline is compared with that of Kkusum, a leap is highly possible.
In Kkusum, a leap happened becasue of MISUNDERSTANDINGS OF CHEATING, PREGNANCIES, and RUNNING AWAY:
Kkusum thought Abhay was having an affair with Mahi, Armaan thinks Jassi is having an affair with CJ.
KKusum was pregnant with Abhay's child, (and Mahi with KK and Abhay's kid), and it is highly possible that Jassi is pregnant with Armaan's child (otherwise they wouldn't have showed the 'SCENE'.
Kkusum ran away, Jassi is running away.
What do you think?