Im 13 years old and i have been getting ill a lot, so i went to my doctor and i dont have enough iron in my blood so they gave me load of different pills and medicine that i have to take and one was the Yasmin pill because i have bad spots as well. i just started taking it on monday 13th may because i started my period that day... but my period hasn't changed? i dont understand how it effects my period? wondering if anyone could help me?