AF or implantation?

Alexus • Married to the love of my life💍❤️ ❤️. Expecting our perfect bean Dec’19 😍🤰

Sooo I know tmi... but I am 12dpo today and I have been experience some mild cramping and when I went pee I wiped and it has a slight pinkish color... and I am a couple days late. What do you think it could be? is AF coming? Or maybe implantation? Idk..could use the advice, and I normally only cramp right when AF comes but never before