5 days late and going nuts!

I keep testing and getting BFNs. I'm starting to think I'm going insane, bc testing has become an obsession. I've taken about eight. This am was my first morning test though and its still neg. I found out very early with my first two surprise babies so i dont get this. Could i still be too early to test? I have every pregnancy symptom and family members are having fish dreams. This is depressing.