Confused this month...

Ro

So I had my last period December 15 my next one is due on January 11th but usually by now i have sore boobs and they feel like 500 pounds each, but not this month i got a really bad cramp in my pelvis in the middle yesterday couldn’t even move could that have been implantation pain or is it to far from ovulation? Please help !

Ps

TTC for 2 years 😏