So I’ve been on BC for about 5-6 months now. Ive never had any break through bleeding before but two days ago (in the midst of having sex) I started to bleed a light brown color I’ve never seen before. I have been to the OBGYN about 4 weeks ago and she said everything looked fine, no STDs, or any other issues. I’ve not missed any pills. I’ve not taken any late. Is this brown bleeding just breakthrough? What’s happening I don’t think I could be implantation bleeding or that I could be pregnant but I’m a little concerned about the bleeding.