bleeding during ovulation?

Kristian
Has anyone bled during ovulation? I started ovulation on Friday and then Saturday I started lightly bleeding. It's a pinkish brown. Here it is Thursday and I'm still bleeding. I've been told it could be implantation bleeding. But does it go on for this long? I've already got a 1 year old, really don't want another. Could this be a cyst or something else?