Implantation

Amanda • I`m 32. Ttc baby #1. I had a chemical pregnancy in August and a chemical again in February. Praying for my rainbow baby
So I am 11dpo and I've been having sore boobs and pressure I'm my abdomen and on and off twinges. Well today I wiped and it was light brown/pink. Has anyone ever had implantation at 11dpo? Or is that too late...