I have two boys and after I had my second one I decided to get the Nexplonon so I wouldn't get pregnant for 3 years and my doctor said that it can affect every women differently sometimes they will get their period, some will get it them won't get it again and some just stop having it all together, after I had it put in I had my period like normal but now I haven't had my period in two months. Does this mean I'm pregnant again?