Here is a link to Med Help's trackers. About halfway through the page, you'll find a tracker for menstruation so you can track your period. good luck
http://www.medhelp.org/health_tools#/trackers
Hi there and welcome. Well, while others do, I personally feel our cervical discharge is not the greatest indicator of what is going on. The stretchy mucus that women supposedly have as they are ovulating--- well, I have that at unpredictable times and it can be the day before my period, day after my period stops, middle of my cycle (when a women Does typically ovulate). Some women have more luck reading it though than I do.
Is your period due? It helps to track it to know when it is supposed to be on its way.
It also sounds like you have gas. That indeed can be painful. Drink lots of water to see if that helps. Gently stretch so that you are moving the abdomen to help release some of the air. Try sitting in the bathroom for a bit. And take ibuprofen if you begin cramping (if you get period cramps).
so, it is kind of hard to say what is going on to answer your question. Let us know how things go in the next day or two, okay? See a doctor if you have unbearable pain. good luck