This is our 3rd month TTC.... AF due 10/5. I took a test this morning BFN. Of course, I was heartbroken. I have had really sore breasts for about a week. I have been semi crampy. Not sure what's going on. I am also using Riteaid brand tests. Are the more expensive tests more accurate? Should I buy those and try again tomorrow? I hate to keep testing and go through the emotional roller coaster.