Period symptoms?

Ak
I was 3 days late & I had what I think was my period Wednesday and Thursday but it was really light and spotting. I keep feeling like I'm about to start my period the pressure in my abdomen. I read that it could be a sign of pregnancy 😩 I took a test Friday maybe to early but it was a ept it was negative. I read that first response is more sensitive so should I get that instead? I really don't know what to do and I really wanna be sure. Which test is more accurate and better?