I've been experiencing a brown discharge/ spotting. It's very light hardly makes it to a pad. It has no smell.  It's been happening for about 2 days. I've been on BC for about 5 or more years. I haven't missed a pill. My last period was about 3 weeks ago and it was normal. My next period is in about 8 days. I haven't had sex only been fingered a few times. I was fingered a day before this started happening. I always make sure my partner's hands are clean. I'm still a virgin. I don't think I've been exposed to any sperm. Also, I started Zoloft about 2 weeks ago. I'm stressing out about this and I don't know if I should be or not. Is this normal? What could it be?