I had my daughter 2 yrs ago & I'm 19 now and after I had her I was on depo I gained 20lbs & I want Mirena but I'm scared what if I take it out & decide to have another bby & I have a miscarrige or. Get pregnant on it. My other suggestion is The implanon the one that goes on your arm. So I'm confused don't know which on I should get HELP!