Pink tinged CM after BFP

Have any of you had this and still had a successful pregnancy?  I received my BFP early at 10 dpo.  At 12dpo I wiped and saw one red dot.  Did a cervix check and just white CM.  Today, 13dpo I wiped and it was light light pink with CM.  Very nervous cause of a miscarriage 11 years ago.  However that I had no signs.  I guess what I'm asking is is it possible to have implantation bleeding after a BFP, could it be a second egg implanting , or should I be concerned?  I will say a few days ago I had cramping that I thought was implantation but it was the same night I received my faint BFP so I didn't think it could have been implantation.  Of course it's the weekend and I'm a tad worried.  Any advice would be greatly appreciated.