I am 36 years old and my gyno put me on Cyclen 21 because I was having periods every 2 weeks with other symptoms. I also think I am starting perimenopause. But my question is that I am on week 3 and I am having terrible, horrible cramping like I am getting a period, but no period, yet!! Just wondering if this is normal or if I should call my doc. Any advice would be greatly appreciated. Thanks and God Bless.