TMI TTC #1 implantation bleeding ?

Yesterday was cycle day 24 and I’ve experienced this ( brown like spotting it was a tint of pink but then turned brown ) 8 days before my period is scheduled to start I had Cramping on and off no bleeding , I usually get cramps 24-48hours before my period . I felt very Queasy the other night but didn’t throw up , not to mention I had a metallic taste on and off today ! Boobs are sore once I take off my bra and I had this “ something is different, but it doesn’t feel wrong “ feeling lately, af isn’t due until 3 days from now ! Any ideas ?