I got the depo shot in October, and my first period with it was 13 days long. My second period, I cannot tell how long it has been, but I do know it has been over two weeks. My question is will the depo shot ever help my periods stop or lighten them. I am breastfeeding my 15 month old (hoping she'll ween soon) I have two children and I'm 25 years old and not overweight.