Taking the pill just to regulate your periods isn't a good idea because you are not allowing a new and natural system in your body to establish itself, and you don't know what effect this will ahve on your body, emotions and fertility later on down the track. The Contraceptive Pill messes with your natural hormonal system in a very, very major way, Consider taking it using great caution and care, your body is too precious to screw with. It can be a hassle to be caught by surprise at inconvenient moments, the embarrassment and shame that we can feel about our blood is wrong and a left over from old times. It is nothing to be ashamed of, and it's taking the world a while to catch up to this new concept. Being aware of how you feel and how your body is will help you to know when you are going to bleed.
All girls start to experience a confusion of emotions when their hormones kick in at puberty.
Hormones and emotions are very connected which is why it is important to maintain good nutrition so as to avoid great hormonal imbalances, and greater mood swings. When this is starting to happen to you after having been a relatively happy and easy going person, this may be quite confusing. All these measures can take some discipline, and are the first steps to becoming a responsible adult. If you are taking care of yourself and resting adequately, plus having a positive attitude to the role of menstruation in your life, you do not have to get sick. This is more a symptom of a culture that does not value menstruation than anything else.