Feeling so discouraged...

My period isn’t due till 8-10 days and I don’t feel preggo at all! No symptoms at all! I feel like I’m already out and know that my AF is coming again! Last time, I got preggo I was constipated for 3 days and had sore boobs before I got my BFP! Anyone had experience with this? I also test positive for ovulation with OPK on July 7th! When is the earliest I can take a HPT?