birth control
"I have had nexplanon for 3 weeks today. I started bleeding after two weeks and 2 days. That was Saturday and today is Thursday. (5 days) I am still lightly bleeding. My periods are usually 3-4 days so i'll not sure how long this will last. The bleeding is very light. Not really a problem for me because I expected this. I will check back in when it stops and let everyone know how long it lasted!"