I am 17 years old and just started my third week of Loestrin. I n...

I am 17 years old and just started my third week of Loestrin. I needed to go on the pill because I play sports and I wanted to have a shorter period. The first week i took the pill absolutely nothing in my body changed. Yet, after the second week i am also getting this brown discharge. It's annoying. I'm afraid to do anything sexually because of it. The past two days i have also had to worst cramps ever. I don't ever weigh myself so i don't see any significant weight gain but my emotions are all out of whack. I go in a huge fight with my boyfriend last weekend and i could not cry. I have been just laying here so depressed and I'm convinced it's because of the pill.. i just want the "spot bleeding brown stuff" to stop ...