Hello. I've been on birth control for about a year now. And about two weeks ago on Saturday and Sunday I had forgotten to take two pills in a row. I had a little bit of breakthrough bleeding. And so the next day on Monday I took two pills and the day after that, tuesday, I took 2 more pills and I continued to take one pill a day after that. That weekend on Sunday my boyfriend and I had unprotected sex. This was two Sunday's ago. It is now Tuesday and I am currently taking my 7 inactive birth control pills. Today I started bleeding a little bit but it is more of a light brown color and it is very light. Could this be because of my breakthrough bleeding the other week? Or is it implantation spotting?