... pounds in one month. I'm 14 years old and I have started noticing veins on my inner thigh all the way down to my calf. Also some veins are showing up on my chest and hips. I don't want to look like a bad case of spider veins at 14 during the summer. So is there a reason why my body's doing this? Is it the depo shot? And I also still haven't had my period or spotting. Is that bad?