TTC over 3 years...

I have endometriosis, so every month I k ot when I'm getting my cycle. I have the same symptoms and pain starting 2 weeks before. This month, I had minimal symptoms. No cramping or pain, no sore breasts. I was due to get it today but all I'm having is spotting. but it's very light in color. That is not normal for me. it's always heavy from the first day to my last. Should I test or wait? This is my first time posting, I'd like some feed back please