Implantation or early period? UPDATE!!

Af decided to show 4 days early ! :(

Hi so at 7 dpo sore full feeling boobs, heart burn mild metalic taste in mouth brushed my teeth 3 times and I had cramping on my left side accompanied by this. Only there when I wiped very pale pink cm with tiny spots of blood. Happened 3 times.

Yesterday at 8 dpo I had mild cramping. Badheart burn which I never get, metalic taste again and sore full feeling boobs (had this since 4 dpo)

Today at 9 dpo I went to the toilet and had what looked more pinkish cm. I checked using fingers (Tim sorry) and this is what I've got now.

I have cramping down my left side again and sore boobs no heart burn. I'm now worried that maybe it's not implantation it's the start of an early period. Took a test this morning too early I know it was negative.

I have had most of these symptoms before but never had the cm. I was so hoping this would be our month but I have a feeling this could be early af. At is due in 6 days from today. I never spot or cramp before my period. It literally hits me full on then I start cramping. Opinions please?