Wth is going on with my body

Ok so I was ment to get my period on the 20th of this month still waiting I had crazy unusually bad cramps the day before it was due and nothing which is unusual I have always been regular and not really had many cramps just pms had none of that and now I'm 7 days late will be getting a test tomorrow but this is weird I didn't have any symptoms for my daughter when I was pregnant with her but I found out when I was 8dpo so unsure what u all think I have no other symptoms other then a missed period and been a little tired.