frustrated at seeing signs everywhere.....then nothing

Sarah
We've been trying for nearly a year now and nothing 😞 each month I feel like there's signs that I'm pregnant, a few months ago I was absolutely positive, swollen, sore breast etc then I started my period. Last month it was tiredness that convinced me and again period came and I was upset. This month it's a bump, my stomach is so swollen and not bloated as there's no change throughout the day or after meals which is usually when I'm bloated. This is despite the fact that I run three miles a day at lunch, followed by a 5 mile dog walk each evening, plus healthy eating plan. I know it can't be a baby bump as, even if I was now pregnant, it could only be a matter of a few weeks but I'm still torturing myself hoping that even with periods and negative results, that maybe, just maybe I'm like 10-12 weeks pregnant. 
Is anyone else obsessing and constantly setting themselves up for disappointment as it's driving me crazy?  Â