HI,
 I understand your concern.
  The haphazard consumption of pills ,followed by it's compensation as advised in leaflet of pill.. was multiple times in month of April. This had caused a 
hormonal imbalance & so you had late & prolonged period in May.
  I don't know weather you had continued the pills this month or not..
    - If you were taking them regularly, there would have been correction of problem.
   - If you had stopped taking pills, there is chance of conception.. which needs to be excluded by blood 
pregnancy test at present./ the hormonal imbalance is yet to be corrected & so the periods are late.
    The pregnancy like symptoms you have, may be out of hormonal imbalance too.
     Wait for periods for one more week. 
     Do pregnancy test. If +ve go for 
MTP if you are not interested in pregnancy & get Cu T fitted.
     In case test is -ve, consult a gynecologist for specific treatment.
  Thanks.