is my period acting weird or could i be pregnant

I woke up yesterday morning to bleeding. it’s supposed to be day 1 of my period, so I i thought it was normal then I had little to no flow for the rest of the day. Two days ago I had a metallic smell to my discharge and I had sex (unprotected) but he pulled out a week ago. Today (day 2 of period?) i also woke up with little bleeding and then had barely any for the rest of the day. i tried going solo and some light color blood happened. Idk if it’s my period or not like idk and I don’t feel comfortable asking my mom about it. i’ve been really stressed and anxious over the past 4 days too. has anyone had this happen or anything like it.

update: day 3 i woke up to no bleeding. i guess the first two it was spotting, i’ve never had that happened. would taking a pregnancy test right now do anything?