So I'm on birth control, but a few days before I had unprotected sex, I had to take a pill late since I slept through my alarm. My fiancé and I had unprotected sex once, got plan b the night after. A day later, we had protected sex, but a little later on, we wanted to go for round two, and he was inside me for a few seconds, unprotected. It's about six days later, I'm on my 5th inactive pill, and I've had no period, just really really light, thick pink/brown discharge? Is this implantation bleeding or am I gonna be alright?