What is rong with me

Ok so about 3 year ago I had a miscarriage and haven't been able to get pregnant so at first my period was not normal and about 7 months ago it started to become normal again so now I have not gotten my period for the month of July I took a test yesterday and it was negative so last night I was spotting and I was like ok am going to start my period and today I have no period or not even spotting what is Ron