"i got the match stick implant inserted 10/13/14 and now it&#039;s 8/14/16 , and as far as pregnancy it&#039;s amazing with keeping under control , you can you use protection or not and never worry about pregnancy ( but i suggest using protection) but i have never had bad anxiety before but recently it&#039;s been crippling and i have no idea why and in heading it&#039;s because of this birth control. i have long irregular periods , irregular color from my normal period before. i notice more discharge and more mood swings and it&#039;s crazy. i feel crazy sometimes. i lost 25 pounds within a year tho, i weighed 125-130 last october and now i weigh 104, from stress. you have to have a strong mind to be able to deal with birth controls head games!"