Is it normal to have large amounts of mucus when using Vines?

Hi, I have a question about the mucus that occurs with birth control pills. Applies Vines for 9 months. Is it normal that mucus varies depending on the week? Next week I'm going to get withdrawal bleeding, and since yesterday I've got more mucus. I'm left with just slime marks on my underwear. Is this normal? After the mucus has stopped bleeding, there is little or no such thing that I can see it. Mucus is creamy can slightly zolty. I was at the gynecologist on Friday and everything is fine. He uses the tablets regularly and the partner always uses a condom.