I'm 21 I've had implanon for almost 3 years. It's due out in September 2013 it's may 2013. I've never experienced Anything like this with implanon before. My breasts are super tender, feel like I'm gunna throw up at random times of the day mostly after I eat I get a weird throw up, up set stomach, I feel bloated or something (not sure never felt like this before) and I'm super tired all day. I'm worried I could be pregnant. I haven't taken a pregnancy test but everywhere I've read It come back Negative whether you are or not.