"i have had the mirena for 4 years now. i got it after my second child. it was highly recommended by my midwife and obgyn so i got it inserted 2mths after my c-section. i am happy with not having to really worry about pregnancy or not having periods. those are definitely pros. the side effects are not so great at all. i didn&#039;t realize that mostly everything i have been feeling are likely side effects of the mirena. acne, horrible breast tenderness, tired, and mood swings. the mood swings were a surprise, i had been chalking it up to feel overwhelmed and frustrated all the time. never dawned on me that it could be the mirena. over all its very effective."