False positive/evap?

Pa

My period was over 3 weeks late almost 2 weeks ago. I was a bit worried because I'm really regular. I did take a test but didn't really think it could be a real positive. I got the second like probably in about 5 minutes. It was a first response. I eventually did start bleeding but it only lasted for about 2 days and it was mostly brown. It wasn't heavy enough to wear a pad and took all night to fill up a tampon. I'm just still wondering if it was even my period. I'm so paranoid. 🙄