11 dpo bfn

It’s been about over a year me and my partner have been ttc and honestly looking very upsetting and frustrating. AF comes in 3 days but I’ve been having mild cramping for a more than a couple of days now. Back aches headaches/ tiredness and I’m ALWAYS HOT not sure what’s been going on so I decided to take a test because I felt a little more off then usual. Came back a BFN of course !! Is it over for me to test since I already tested at 11 dpo and got bfn?