Today is 13 dpo and today if I have a bfn I'm supposed to off progesterone and have my period. I had a bfn and didn't take progesterone this morning. Im now nauceaus as hell (which doesn't ever happen to me). It's the Fourth of July so my dr is out until Monday. OPKs don't work for me (they don't catch the surge somehow, but I do ovulate on my own), is it possible pregnancy tests wouldnt either?