Is this my period? Should I take another pregnancy test?

I was 28 days late so I just to make sure I tried to test week by week since the day my period was late and tests all came back negative.

I read online that vitamin c can induce a period.

My period was 28 days late so I took 6000mg of vitamin C for 3 days, Sunday, Monday and Tuesday.

On the 4th day Wednesday I had pink discharge

On the 5th day Thursday I had more pink

discharge

On the 6th day Friday I had red/brown discharge

On the 7th day today I tried to put a q tip inside and there was red blood

Throughout the day I only wore 1 pad today from 7am-5pm and not a tampon because I think it’s not a normal period. I think it’s just spotting from what I did.

What do you think? Is it my period? Or is it just spotting? Does this quantity of blood pass as a normal period? Or is it too light for a period? Should I take another pregnancy test to be sure?