Is withdrawal bleeding always just as abundant?

Hi, is the blood from withdrawal more scant when using thevaginal disc? I ask because I have the puck 2 months. At the first month, the blood began to fly on the same day that I pulled out and was abundant. Now it's 2 months, I pulled out on Thursday and still nothing, and it's Sunday. There is only sthinging, more or less abundant. Can I count this as withdrawal bleeding? I put the puck and pull it out on the right day at the same time. And one more question. For example, the day before the puck is pulled out, is its effectiveness the same?