Watey pink stuff :)

[Beut]

Hello i hope someone can tell me if this is the start of af or implantation bleeding!! This month i have completely relaxed about ttc and yesterday morning 5 days before af i noticed watery very light pinkish discharge..The weird thing is,it completly stopped until this morning when i had the same small amount and again nothing since.Others symptoms kinda sore boobs and mild cramping..Any one had this i'd like to hear your views x x x