if its Bani who faints tommorrow that means that she will be preganant cos after the park road raaz we all found out that Bani was perganant. So after the ONS is out Jai and everyone else will find out that Bani is preganant. But Bani will leave WM and tell Jai that this is his punishment............
Also after the leap If Bani meets Jai and Jai has a child with him she may think it is Pia and Jai's child, when the child will be actually Rano's cause she does not know that Rano is preganat. Rano's child might be really close to Jai......