I been on Loestrin24Fe for awhile now. I'm 17 years old and went ...

I been on Loestrin24Fe for awhile now. I'm 17 years old and went on it because of severe emotions 2 weeks before every period and painful cramps. When I first started the pill I had my period then got it again the next week! I didn't know if that was normal but I talked to my doctor and she said it was. Then the next month it went away and my periods were really light. However, my periods have been getting lighter and lighter throughout the months. And this month I haven't gotten mine at all. I got all the regular things when I'm on my period like slight cramps, being a little emotional, and tired. After reading some of the other posts it seems a lot of girls have not gotten there's either. Which made me feel a little better. But is it normal to not get your period? It's kind of freaking me out. Me and my boyfriend are always safe. Well, the pill has defiantly changed my life in a good way though. I used to be so emotional that I would freak out about the littlest things and couldn't even stop myself. After being on it I can actually think straight and live my life.