Hi Guys, I've been on the contraceptive implant for over 2 years now, and I didn't bleed until about 1 month ago. The bleeding was very light and very dark, almost black. I stopped bleeding and ever since I've been having thick brown discharge and alot of big blood clots. I've had about 6-8 big blood clots, and find at least 4 small ones everyday, and they're also very dark. But I haven't been having any blood with it, just the discharge. And it also has a odor. Should I be concerned?