Faint BFP photo ?

My Af is due in 3 days. I decided to take pregnancy test even I know it’s kind a early. I take one around 6 something in the evening it was negative then 1 hour something later I went to look at it before I trash it then I see a faint bfp. I know after the Time limit they always say any other results are considered invalid. However some do ending pregnant after that.im not getting my hopes up. I will test in the next few days. My symptoms are: tender breasts and painful nipples,Bloating,sour taste in my mouth. I don’t feel like myself at all.