Pregnant?

Hi ladies! So, I took an opk in December 23rd and it was positive. I had another temp surge three days after that, too. Unfortunately, it’s hard to pinpoint when I ovulated because of this. I don’t know my dpo. I use three apps, and all three say my period is due anywhere from 3 days ago, January 5th to the 11th. I have 28 day cycles, so if it comes on the 11th, that would be off for me based on my prior luteal phases/cycle info. I have been experiencing cramping on and off for the past week, and a pulling or tugging feeling in my abdomen on the right side. (That’s unusual for me). My temps are high, I feel like i am radiating heat, and I get labored pretty easily when walking. I’ve taken 3 pregnancy tests, all negative, but again, I don’t know my exact dpo and am not exactly past my period but have no period-like symptoms today at all (but know it should have started by now). I am trying not to read too much into this, but wanted your opinions. Please give me your input! Thanks ❤️