Help need advice :(

So my period was 32 days late and a week ago i read an article online that taking 6,000mg of vitamin C could induce a period.

I did not have sex but I still took a test to be sure that I’m not pregnant and the test came back negative.

So last Sunday i took 6,000mg of vitamin C for three days.

On the fourth day Wednesday after taking vitamin C for 3 days, I started to have pink discharge

On the fifth day Thursday I had pink/brown discharge

And today the sixth day Friday i woke up with this light spotting brownish/red discharge

The spotting is very light not like my usual period. Should I be worried? What should I do?

Is it safe to say that this is my peeiod and that I’m not pregnant? Or should I take another test to be sure?