While an IUD is inside the woman and active, the woman will still ovulate, however, the IUD will secrete hormones that thin the uterine lining to the point where the fertilized egg can't embed and start a viable pregnancy. The fertilized egg just dies off, I guess, and is part of the menstrual blood stuff, if there is enough lining to slough off that is.
The blood was indeed fresh, like period blood. However, because the IUD, and the way it thins the uterine lining, I don't normally have any period bleeding. If I do, on the rare occasion menstruate, the resulting blood is old and brown. This blood was fresh and bright red.
The toy I used was one I've had for a while. I've inserted it before with no problems. It was when I inserted it that night that I saw blood for the first time on it. My boyfriend didn't finger me, so a fingernail scratching something inside of me is out of the question. He preformed oral on me and we had sex, but like I said before, he withdrew and ejaculated on my chest.
I also read that one of the first signs of pregnancy is thick milky white discharge in the vagina. I checked just now and indeed have that discharge. It doesn't smell and I have no itching or discomfort with it, which is indicative of being pregnant.
God, it just keeps getting better and better, doesn't it?