Help!!! Please. * UPDATE*

I am 6 DPO I have had light cramping all day and I just saw brown blood when I wiped. I also have:

-sensitive nipples

-TONS of cm which is not normal for me

-increased temp after a dip yesterday

-achey breasts

-cravings

-strong smelling urine

-frequent urination

Could this be implantation? Or the start of my period?

I should start my period for another 10 days at least

Update:

Today my period was supposed to start but hasn’t yet. I took a First Response test and it was negative

Called the doctor hoping to get more answers soon