9DPO - cramping - am I out?

Rachel

So with my son I had cramps and was convinced I was out. They were mild and day after my missed period, I got a positive. Now 2 years later we’re trying again after a miscarriage and chemical pregnancy. My cycles have returned to normal, however I’m now 9DPO and having heavy period like cramps. All of my tests have been negative minus one FRER today which I worry may have been an ident. These cramps are sharp and a bit painful, more like period type cramps and I know implantation cramps are more mild. So... I guess my question is, should I just stop wasting my tests and wait it out (period due Saturday) or keep going? I feel like sharp cramps are just screaming that I’m out...