Implantation Bleeding Baby #3?

Hi ladies.. Just wondering if anyone has implantation bleeding experiences or knowledge . I thought I started my period early at 10dpo .. But when it "started" it was a pink discharge and started at 11 at night which was strange for me mine always start in the AM and never start pink ..and 3 days before my expected period which never happens .. It picked up very slightly like hour increments not even filling a pad or needing to change the next day however was not like a period red or heavy and now today its back to the pink discharge .. If I do spot red on my liner when I wipe is a pink discharge .. Definitely not thinking its my period and being technically day 3 by now I would of had my flow and pretty much over by day 4.. But my period should start tomorrow or Thursday .. Ive Still been very nauseos and boobs have still been sore... The other thing is I dont have pms pains on my AF... When I bled with this flow or whAtever it was my lower back ached and I had mild period like cramps but not for an entire day .... I tested I believe the day before yesterday n got what I think may have been a line ... Ugh any suggestions