Advice Plz

I was supposed to ovulate Dec 10-11, but on Dec 19 I was feeling back pain and cramps, feelings like ovulation. So on Dec 19, I took an ovulation test and it was Positive. I was so confused. My apps say I was supposed to get my period Dec 25, and I haven’t gotten my period. I don’t feel any symptoms of anything. No period symptoms and no pregnancy symptoms. Not feeling a thing.

Looking for some opinions, super confused.