I had unptotected sex on 29th January...took the ECP(levonogestral 0.75 mg 2 tablets) on 30th January almost at 28th hour. Had my periods on 4th February but now its 11th march and my period was due on 7th march...i am having severe camps abdominal pain and feelingĀ nausia too....i hope i will get my this month periods soon its been almost 6 weeks since i took the pill.