When they updated my 2nd line on Jan 25th, they sent an email requesting Police report and medicals within 2-3 weeks.
once I was done with my medicals, they updated the third line saying "Medical has been received"
Now waiting on FBI report to sent it to VO.
you should be getting emails from them requesting medicals/Police reports, they don't take this long for that, please check your junk email or send them a email asking for status.
They gave me two months (in your case it could be until April 11th) to submit all the required documents.