Is it normal?

So I’m on the combo pill and have been for months. Anyways, I just started a new pack on Sunday and I seem to be having more discharge than normal. It’s still white and creamy for the most part but some times its been a little milky and I’ve read that that could mean your fertile which I should t be since I’m on the pill. Anyways, I know that I’m not pregnant and I’ve been taking ovulation test and all of them have been far from positive. What’s going on? Is this normal? Should I worry that my pill isn’t working?