Pregnancy questions

Amanda
AF is a week late, my test was a BFN all week. Last night I went to the Dr for a blood test and was also told no. I have none of my normal AF signs. I get a few cramps that come and go but nothing big. I'm still praying the Dr is wrong and I trust God to work a miracle. I was worried about another cyst but I had horrible cramps with it and nothing like that. Has anyone been pregnant when a blood test said no? Any clue what's going on?