Am I out?

I’m 3 days late, cd 36 and 16dpo and again I got a bfn.. not even a faint line, just a clear bfn. I had some mild cramping on 11dpo and some really light brown spotting on 14dpo, so I guess I’m out. This was month 5 of ttc and it’s already so exhausting. I wish AF would just show so I can move on