Needing advice

I stopped using this for a while but needing advice asap as not sure if I should maybe take a trip to the doctors. My period was just under 2 weeks late and the past may, June period had been odd as well just really light, no clots one month was longer than usual, next month was short. So I had Julys period at the start of August, the pain the first night was unbearable I was up rolling and tossing all night (this unusual) for me to have cramps like this, I even had pain shooting down my cervix, this period has went odd again no clots, was watery and more or less pinky/red not dark or really red. I also have a lump just above my ovaries at the side of my belly button (this might mean nothing) any advice would be great as I can't continue to live like this.