What Are The Side Effects Of Yasmin Pill?

hi i have beening taking the yasmin pill for nearly three months now,before my seven day break i was late to take 1 pill an took it as soon as i remembered,but i still started to bleed so i continued with my next packet that was 24 days ago an i still bleeding,its bright red in colour now its not so heavy but it seems like its coming more heavy,after i had sex.is it the pill