(Lack of) symptom spotting..?

Usually AF is 25 days long, can time a watch on AF. Today is day 26. Usually I get really sore boobs for the week leading up to AF's arrival. Nothing this time. I was at work the other day and all of the drinks I was making smelled horrendous & made me wanna hurl. Switched to a cleaning job & the chemicals made me wanna hurl. I got a positive opk on June 27th, and hubby and I BD'd a few times that day! Today would put me at 12DPO. I took a dollar store hpt earlier, not FMU and got a BFN. Is lack of sore boobs a pregnancy symptom if you typically get them? Is it possibly too early for a cheapy test to pick up pregnancy? Am I just completely going crazy hoping for a BFP?!