Long period what up

Dawn

Why is my period like that I have pcos and underactive thyroid and depression? I am on levothyroxine 50mcg and junel 1.5/30

Is it because I toon the pill on the day of my period and not the Sunday after? Will now that I have my period and take the pill next week will everything go back in order? Any advice is good. I am 23 years old and 116 pounds and 4’9” height.