2-3 days late

Jessie

Hi my period is roughly 2-3 days late my partner and I had sex when I was ovulating multiple times iv been having cramps on and of since 10DPO TOOK 3 test all negative my period is always regular never late I keep getting cramps like I’m about to start my period it’s kind of annoying me iv had extra discharge like creamy white and sticky like I’m about to ovulate again.. anyone know what’s going on?