I am 18 yrs old and i just had my baby like a month ago, so im seeking for a long lasting birth control and i was thinking on taking the iud but then i heard about side effects of how it can get misplaced or give you an infection .so im really scared and dont know what to do, so it will be nice to get some advice from woman that are on it. ANd ,is it true that if you have hard sex it will get misplaced or give you a vaginal infection...