Need advice

This is my first month ttc. My af is due Friday 9/11. I took a hpt today and it was a bfn. I know it's best to use fmu which I didn't use. I've been having tons of symptoms. My big o day was 8/27 and I swear I had what everyone describes as implantation bleeding on 9/2. Today I'm bloated and getting light cramps like af is coming. I need advice is it safe to say it's not my month, that af is coming? Or could it still be to early for a positive hpt? With  all the symptoms I was having late last week I thought I was for sure going to get a bfp?