Anyone had like a light period before BFP? ❤️

It started last night at 12dpo as a light pink when I wiped then it was like a rust color and not it's still like a light flow but kinda red colored. Has anyone had this then went on to have a BFP? I have had a few symptoms prior and now it's bad back pain and occasional boob pain.

Please help! ❤️🙏🏻