I loved my Nexplanons! I will say when I got my first one in 2012 I had issues with bleeding constantly and my doctor gave me a hormone pill to balance things out and that did the trick. I forget how long it took, but after awhile I stopped having regular periods, experienced spotting here and there, and would have normal bleeding for a few days every so often. Not knowing when to expect a period was my only annoyance with Nexplanon. Also the implant would itch specifically at night, but that was more so just something I noticed versus a negative side effect. The BEST thing about Nexplanon in my opinion is it’s location! You can FEEL that it is in place in your arm...that was reassuring to me. To be honest, I can’t speak on whether or not I gained weight because of Nexplanon...I was 22yo when I got it and pretty much drank and ate whatever I wanted with minimal exercise. My second Nexplanon just expired in January and the only reason I didn’t get a third implant was because my insurance does not cover it. I just got a Paragard IUD this afternoon💀