Talk to Gynecologist on Gynae Related Light Menstrual Bleed

I have been married for more than 2 years.I have no baby right now. my menstrual cycle has always been regular occurring every 27 28 days and lasting for usually 6 to 7days. However from the past 8months my menses are reduced with light bleeding lasting for not more than 4days and there is no heavy bleed even on day 2 or 3. at day 4 it's only spotting. The cycle is still on time. i have been trying to conceive my thyroid profile and Fsh and l.h were normal a year ago. on USG i am ovulating whenever i get it done at day 12 developing follicle is there. i have been taking aromatase and clomid for induction from 7 8months. i am just worried about my cycle. is it because of the medicines or should i get anything else checked? I am taking multivitamins and my diet is good too.