What if this happens? Will be even greater fun!
Jalal will doubt Ruk and give ark, and learn she is not pregnant. Jalal won't tell Ruk or even confront her but will want to investigate why both Hakims said she was pregnant.
So Ruk might be totally unaware Jalal knows and he will watch her carefully.
Maybe HB might want Jashna and Jalal will not say no and will continue to investigate Ruk - like what had happened in Jodha's fake pregnancy.
Maybe Jalal will get some clue in the Jashna that Ruk deliberately faked it and Ruk's big bhandafod in the Jashna!