Need Advice - TTC

Brit • Happily married for 2 years! TTC Baby #1.
Well AF is 3 days late and I am NEVER  late. I am nauseous all day for the last 2 days. I have taken numerous tests and I keep getting BFN. I just want to know. ?? Is there a chance I am still preganat? Lost hope! I read an article that said at this point the pregnancy tests are accurate, positive or negative. So should I assume I am not at this point since I have numerous negatives?