Help .... pcos .

So my last period was 1/2/2020

I had sex between 1/6/2020 up till now

I had some spotting . It wasn’t a flow .

The color was light pink lasted about one day .

I have PCOS. My period is irregular . i can go to about 10 months with out a period .

I have test to check if I’m pregnant . NEGATIVE .

I’m just curious if I could be pregnant , or maybe that was my period ?