Any advice?

First off - when do you typically get implantation bleeding IF you get it. 🤔

I'm 12 days away from my next period but twice today I very randomly had blood after using the bathroom. I wasn't able to test for ovulation this month since my best friend just got married and I was so busy. So I'm a bit clueless how many days I am post ovulation but curious as to why I had blood. It wasn't super bright red blood, almost looked semi older but not brown. 🤔