I was wondering if anyone has had similar. I have always had regular periods and never really been on the pill for any long period of time and not for the past ten years. I had a baby when I was 38 and my periods slowly went back to normal and my cycle has been perfect ever since. I'm now 40 and last month had my period start on the 16th May. I felt cramping today but thought it was just bloating. However, I've just gone to the toilet and my period has come. This is over a week early than normal. It's so random and out of the blue. There is zero chance I could be pregnant... has anyone had similar? Could it be peri menopause?