Symptoms or nothing?

Hello!

My ovulation date was the 13th (according to the app, which I know isn’t always accurate) and my period is due Saturday. Over the weekend I experienced a lot of cramping and breast tenderness. I also have been burping a ton (which is strange for me). I also don’t typically feel cramps during the week before my period, if I cramp at all it’s usually the day before only.

Do you guys think these are symptoms or just kind of in my own head?