Levothyroxine meds..

Katie

I have question and hoping someone has experienced the same or know something..my periods are always regular. I know when i ovulate, 26 day cycles. Everything always normal. Last month I got put on levothyroxine for my hypothyroidism, yesterday I wS supposed to start my period but all i did was spot light pink when I wiped. Today I spotted dark blood but nothing more. Could the meds be the reason behind this? Any in help or feedback counts!