Usually, my periods are around 4 days. With time, I've learnt that that is normal. But, lately, they have been for 2 days, and then I have more than a half day without and then a day with. (Approx. I hope that makes sense...)

I am having no irregular pains or any worrying symptoms, and am definitely not pregnant as I am 18 and have never had sex. I heard that it may be due to stress and my mom said there is nothing to be worried about. But I wanted to see if any of you could help me, as I am pretty worried... Thanks.