POSITIVE OPK 9DPO BUT NEG FRER?!

Savannah
I had a positive opk 10 days ago and now I have another? But now it's taking the dye from the control onto the test line!?!? Any help I took a FRER but it's negative! My nipples are sore and I've had cramps on my right side and slightly noticing me go to the bathroom more but now I'm just down right confused. Any help would be realty appreciated!!