Nexplanon

I will soon be getting on Nexplanon Birth control, is there anything I should know about it? Wanting to know some experiences others have had with it! I got pregnant while on the birth control pill, so I'm leery of taking that again, and I tried the Depo shot a few years back and it cause me to go from 125 pound to 97 pounds in just three month, so this time I am trying something different after having my son a year and a half ago. I'd rather be forewarned about any pros or cons before I commit to this form of birth control! Thanks in advance!😊