Tmi, did you experience this as early pregnancy symptom?

Hi everyone. So my fiance and I have been trying for another baby for a while, but we haven't been successful since taking my mirena out last year. We decided in December to stop trying and maybe wait a few years to try again but I'd remain off birth control. I'm due for my period in 3 days and I've had Diahhrea the last 2 days. It's not due to an illness as I'm feeling fine otherwise. This isn't a normal pms symptom for me, so I'm wondering if maybe it could be a sign of early pregnancy? I think it's still too early to test. And I don't want to waste a test yet. But how many others have had diarrhea before your expected period and ended up getting a BFP?