A lawyer posted this timeline in the WhatsApp group yesterday:
April 7: it was published in the Parliament´s Official Gazette. The MPs are allowed the next 3 days to point out any inaccuracies
April 13: earliest day it can be sent to the president
April 21: (assuming the president received it April 13) 8 days after the president receives it would be the deadline to refer to the Constitutional Court
May 3: (assuming the president received it April 13) 20 days after the president receives it would be the deadline for promulgation if not vetoed or referred.