Af or not?...maybe some tmi lol but I need help deciding

Whitney
I'm really confused, wondering if this has happened to any one else...I was 11dpo today and I poas this morning at 7( not bleeding...nothing), negative as far as I can tell and then literally 5 min later I start what I think is af..it looked like af type bleeding so I got a tampon. I usually spot for a few days before actually starting but didnt this time.I went back to sleep and woke up around 10 decided to take a shower so obviously took out the tampon and there was just brown spotting on it..not af type like it was for apparently just like 5 min...its still just brown spotting now....so im just confused....is this my af or not?!!! :/