I've been on nexiplan hormonal implant for 7 months. The first month I had my period but after that I haven't had one and now its been 6 months with no spots or nothing. I'm not sexually active but I have passed out at partys a few times with no memory... Its normal though. I am now getting cramps like from a period, but there isn't even spoting and its been a few days. Over the past few months I've gained 20 pounds, but I do know that is a side affect. I am now scaird something I wrong... Can anyone help me I'm scaird something's wrong