Missed period. Spotting. Pregnant?

Today my period was due but all I’ve had is spotting only when I wipe and it’s off and on. Sometimes there. Sometimes not. I’ve been having this on and off spotting for 8 days now. It’s never dark like blood. Just brown and pink. I have taken 2 pregnancy tests. Yesterday negative. This morning negative. (The dropper tests and they were $1). I checked my cervix with toilet paper twice in a row. The first time same blood as when I wiped the 2nd time there was nothing. Could I be pregnant or is af starting slowly? I have no cramps just a heavy weight and dull feeling in stomach.