I'm sorry for reposting but I didn't get responses before. So I'm on Nexplanon and we use condoms. Just started spotting again four days ago. Medium spotting overall, dark brown with some dark red, clots and pieces of lining. Pretty much like my usual spotting. I also had sore boobs before the bleeding but it went away when it started. What's scaring me is that it started eight days after sex (protected with a condom on top of my Nexplanon) which happens to fall in the possible time period for implantation bleeding. I have a bad history with anxiety and sex, thought I was over it but no. Really need some help.