Late painful period

Silvias
A few days ago...My period was 2 days late and I was getting all excited...It was feeling different than pms..and it's only been late a couple times this whole year. And then AF arrived in the AM. I cried so sad hubby held me and comforted me..  When it's late it's sooooo painful all over spots of dark and light blood clots throughout the last few days.  Thinking back even when AF is on time I see blood clots.  Is this normal?  It's more painful and I'm much more weaker when it's late for me. Not much of an appetite this period either..Does anyone else experience this?