help 40 days late neg test

all neg test !! what can i do to make my period come ? any advise for dealing with irregular periods and making them normal again? ive never been this late in my life . but also have been stressing. did take a new pill called conception for 5 days !!! but i was already late when i started taking it . took it jan 5 on cycle day 44 for 5 days . could that have messed my period up ?