Ttc ! Trying to stay positive

riata
For the past few days, my boobs have been hurting, wich they usually do before AF, but this time the pain felt different. They also felt fuller and I had some cramping and back pain. I was really hopeful, that this may be our month.and then today I had no symptoms what so ever and I keep getting this feeling that I'm not pregnant. Im still gonna test this weekend, but im sure im gonna get a bfn once again.Why does TTC have to be so stressful?