SPEARMINT+ MISSING PERIOD

SO I HAVE BEEN DRINKING GREEN TEA WITH SPEARMINT IN IT FOR LIKE A WEEK AND SOME CHANGE. NOW MY PERIOD IS MIA AND I'M SO CONFUSED CAUSE NORMALLY I COME ON BETWEEN 5-8TH DAY IF THE MONTH. I'M A LIL FREAKED OUT CAUSE I AM IN FACT SEXUALLY ACTIVE BUT IT WOULDN'T MAKE ANY SENSE CAUSE MY BABIES ARE DRUG BABIES MEANING I HAD TO TAKE MEDS TO GET PREGNANT. HAS ANYONE ELSE HAD THE SAME EFFECT WITH SPEARMINT CAUSE THAT'S THE ONLY CHANGE I'VE MADE WAS DRINKING GREEN TEA WITH SPEARMINT IN IT TWICE A DAY.