Never been more FRUSTRATED!!

April

AF due today and no sign of it. After 22 cycles of ttc I know my body and I though for sure this was it. Strong ovulation on femara, spotted on 8 dpo, once when I wipped (usually spot all 5 days leading up to af) instead creamy/watery cm for the last week, zero cramping or backache, feel great actually. Except the BFN's. Took Walmart cheapy thinking if I was pregnant there should be enough HCG to detect at 14 dpo, it was negative so I ran to the store to get a first response and its also neg. I am soooo fed up with this. It shouldn't be this hard!!!