so confused

Jane
I'm currently on cycle day 62 last period was 3rd November I've missed two periods in a row. I've been taking hpt and been getting negatives until Saturday evening I got a faint hpt.
So went out Sunday and brought another test but different brand and got a bfn I'm so confused now. I'm booked in for bloods tomorrow morning but soo scared there going to be negative. I can't get my hopes up I'm so used to get bfn after 2.5 years of trying and being told that my left tube is blocked and need surgery.
I need some positive stories anyone tested got a bfp then bfn bd still been pregnant?