Thanks smarston! I greatly appreciate the company.
Unfortunately yes, the green handled 'Wondfo' OPKs are indeed rip offs/fakes, and they are less sensitive, much lower quality (I dipped 4 sticks into the same urine and all the test lines looked different). If you got yours of amazon you should be able to get a refund. If you re-order more, make sure the seller has a medical sounding name. Also order from the Wondfo supplier with the most reviews/purchases. The best OPK brands you can buy in stores are FRER and CB digitals (NOT the Advanced). DollarTree OPKs are a bit sensitive but if you're having issues getting positives they might work well for you. Did you get true positive OPKs before 2 months ago? With which brand? How dark was the darkest OPK you got last month (test line % darkness of control line)? What time of day do you test?
I hope you see a nice big follie at your scan tomorrow. What CD do you usually O around?