Hi. I'm 19 and I'm looking for birth control. Ive been on pills before but developed a blood clot in my lung. So bc pills are a no for me. Since my risk for pregnancy is high risk, I can't get pregnant on accident, it could be life threatening. I'm wondering about the side effects. On bc pills I never noticed a change in mood/weight/acne. Will that be the case if I choose mirena? HELP! I love my boyfriend.. But no babies for us yet! mirena looks great but I'm scared.