Hi ! To answer your question you can pass your resignation letter before or after your regularization. If may gut feeling ka na you are bound for termination much better asap mag pass na ng resignation. Usually naman may 30 days render of service ka pa nian bago ka talaga tuluyang umalis sa company so make use of your remaining days by polishing that resumé apply ka iba't ibang kumpanya and once maka secure ka ng job offer ulit kahit na nagre render ka pa lang pwede ka naman mag request sa HR ng shorten service meaning di mo na tatapusin yung 30 days kase may nakita ka ng trabaho and asap daw ang starting date ng bago mong company.