advice please x

Rebecca
So last month I had an early miscarriage with my ex we split early Feb and have sex one week after splitting which resulted in a miscarriage. I lost the pregnancy 8th march I started heavily bleeding lasted around 8 days now I have had unprotected sex this month with a new potential partner.... 
I knew I was pregnant last time as I had no period symptoms I have always had a 28 day regular period and the same thing has happened this month I have no period symptoms at all and I was due on Thursday I done. A test yesterday but was bfn 
Sorry for a long post my question is 
Is it normal to just stop having period symptoms my cycle was so regular I knew what part I was when I would come etc everything now I have no clue? Would it be due to miscarriage x