Ovulation or pms? Or both?

So for the past 2 days or so I've gotten some pains down there and my emotions have been all over the place. Especially my irritability. for around a week my boobs have been sore. It's cycle day 21. I've only had my period for 6ish months so it's still regulating. I know exactly what happens but I don't know the difference between symptoms. I had medium/heavy egg white cm for a week and a half, but today and yesterday it's been more on the creamy side. Also starting this weekend I had a huuuugee appetite boost. I've been starving 2 hours after having a huge lunch. I've also gotten oily skin and hair. What do you think? Ovulation or PMS?