last period date of mine is 7th of sep,today is 12 th of october,still my period not came,what it means ??i did pregnancy test at home but result was negative,yesterday i have done beta hcg test,result report is less than 0.100mIU/ml,i think its also negative,i have started to take homeopathy medicine since last month,why my period is getting delay,what are the reason behind it,plz answer ..