I've been in ortho tri cyclen since the 14th (Sunday start, but I started my period on the 13th, so it wasn't a very long time). I've taken it at the same time every day. For about 4 days after my period ended, I had a little breakthrough bleeding, but then it stopped. All has been well, and then on the 28th I had sex without a condom (withdrawl method) - which won't be happening again.

Today, when I wiped, there was just barely barely a little brown discharge. There's nothing now.

Could it just be from sex? Surely it's way too early for implanation bleeding, right? I'm worried though. Please help.