HELP ADVICE URGENT FREAKING OUT

Ellie

Sooo ovulation happened 24th Oct I’m thinking and then period well what I think is my period started 13days later (so Monday) 5 days earlier than normal ish (expected Friday) so on period day 3 well what I thought but had the weirdest day body has been all over the place clumsy, dizzy, period so light it’s now gone? Someone in work asking if I’m pregnant and now I’m lying in bed thinking omg am I? Could I be? Put a tampon in incase but the last one I pulled out was browish and not much going on for day 3? I dunno do I test tomorrow? How long to wait??