I haven't seen any weight gain and it's good for up to 5 years and if you get it taken out cause you want another baby, you will be fertile right away you don't have to wait for your body to catch back up. Ya know?
I loved the nexplanon before I had my son because I never had a period and no side effects but when I got back on it after my son my milk production dwindled drastically. But my obgyn educated me about this copper iud that is non hormonal and is good for up to 12 years