Is it normal for withdrawal bleeding to take the form of spotting?

Hi I have been taking Vibin mini tablets for 7 months now. The tablets helped me overcome menstrual pain and adjust it. No side effects. Previously, I took Vines for 4 months and had a lot of side effects. One thing has not changed, that my withdrawal bleeding is very very scant, it can be said that these are more spotting than bleeding. I care if this is nothing serious, I read on many social forums that it may be normal, but I would like to ask here if it is true, or should I be worried and go to the gynecologist?