Cramping at 8 dpo

Hayley • Married 8.2.14; Luke 7/15/17; Colt 6/14/19; #boymom 💙💙
I'm currently at 8dpo.i have a regular 28 day cycle every month and have had 5 cycles off bc. I am not on any kind of medication, just taking prenatal vitamins and I have never in my life cramped before AF. I have 6 days til AF is supposed to show up and today I started cramping kind of like AF cramps but with like a pinching. There were a few sharp twinges for a couple minutes and other than that it's just been a crampy feeling all day. I'm also pretty bloated. Has anyone else experienced this at all whether it resulted in a BFP or was something else?