I'm 18 years old and have been on deep on and off for about 2 years. Recently started back up and at the end of my last shot I started to have a period lasted a whole week (I never have bled before on it) and I don't know why. My ob was very unhelpful. I have gained 10 pounds in less than a month and kept it on. I am now on my second shot (all on time) and experienced very light spotting yesterday and then today started getting thick discharge. I've been cramping and headaches, peeing and very hungry along with being extremely tired. Does anyone have an idea as of to what is going on? Possibility of pregnancy? (me and my boyfriend have unprotected sex often)