Implantation bleeding or ovulation bleeding? HELP.

So according to Glow, I am 5DPO but I have irregular periods. I know it's too early for possible pregnancy symptoms but last night, I was so nauseous I couldn't stand to do anything but try & go to sleep, I woke up with really bad indigestion, I'm crampy and maybe it's just the way that I'm laying but I have a magnetic/bulging forward feeling in my ovary area. I went to the restroom twice this morning and the first time I had this: