"During the first month I felt sick and had some spotting.  I have been using it for almost 18 months now and I love it!  I love the shorter periods (only 2-3 days). I started using it to stop serious cramping and it worked very good.  It caused no weight gain, my breast size increased from a B to a C.  I am an active runner and this pill still works great for me, I will not be switching to anything else anytime soon. I recommend this to anyone who is looking for something good to use."