I've had what I'm HOPING are implantation cramps since DPO4-through today still. Today is DPO 7.  Today got a BFN. Ignoring that I'm only DPO 7, based on cramping, and assuming this is Implantation cramping, when should I be able to see a vvvfp if I POAS.  With my last one I saw a POS on DPO 8. HOWEVER, I bought two old FRER today and have already used one. So I was thinking of using the other with my FMU tomorrow DPO 8, since I hve gotten one that early. I also have about 25 wondfos. But since FRER is more sensitive, I was thinking it may pick it up sooner....

So-when did you get a positive after your Implantation cramping? And was that from the start of the cramping or from when it stopped-b/c mine has been going on for 4 days.