I am ttc I have a 32 day cycle and I ovulated on February 18 my cycle was expected March 4. I am 8 days late.?

The only symptom I have is moderate fatigue, There is absolutely no sigh of my cycle showing up. I tested 2 days before I was due for af then the day af was due and then 5 days after. They were all BFN, Yesterday my GYN drew blood for beta HCG. I am hoping for a BFP. Is it possible that I could still be pregnant with all those BFNs and no syptoms???? PLEASE HELP