"i just had my 3rd shot and i&#039;m very happy with it. before i got on the shot i had tried several different pills. they all made me have mood swings and depression, and i felt tired all the time. my doctor talked me into trying the depo shot and it has been amazing. i feel full of energy and i haven&#039;t had any mood swings and best thing is i haven&#039;t had a period since!!!! the only side effect that i don&#039;t like is the weight gain. i have been working out like crazy to prevent the weight gain, which i haven&#039;t gained any weight but i can&#039;t loose any. so basically i&#039;m working out just to stay the same. this sucks but if this is the worst of the side effects for me then i can deal with that."