Yes, I have used OPKs as HPTs before and they do work. They actually can detect pregnancy even sooner than a regular HPT. I used one at 8dpo and got a BFP. I just happened to have one left over from ttc. Good luck
I've tested at 8dpo. As long as the test line is the same colour as the control, it is positive. It depends on when implantation took place. You may not get a full ++ until maybe 10dpo or so. Good luck!
Yes, I have used OPKs as HPTs before and they do work. They actually can detect pregnancy even sooner than a regular HPT. I used one at 8dpo and got a BFP. I just happened to have one left over from ttc. Good luck
Kellie
Kellie