I been on depo for nine years been off it for three months. My first period was just a few spots and it was brown. Month two bleeding brown but not enough to drip on to a pad but a lot on tissue. Could I be pregnant?

Unless you've had unprotected sex during this window period I'd say take a test. I'm on depo at the moment and a week before I'm due for my next injection I get a period, but it's very brown and lasts for an entire week. It's just your body trying to become healthy and used to not having the hormone in your system anymore. :) hope that helps