Bfn!!!!

Tracy
I have been ttc # 1 for a month. My periods have been all the same for about 2 yrs now. My breast dnt get sensitive after I ovulate or before af. My stomach cramps just a few days b4 af to let me knw it's coming. Well since last month after I have ovulated my breast have been hurting and I am having like burning sensations in my nipples. My nose is very sensitive so I can smell any and every thing. I decided to take a test at 8 dpo and it came up negative. I am so disappointed. I dnt knw how anyone can stand doing this every month. I knw I want a baby but to be let down is hard. Af does not come on till 9/12 so I just hope I tried it too early. Can anyone help me on how to stay positive during this time?