Late on my period

Tatiana • Im mother 4 my blessing of my kids The best thing in my life
I'm late on my period I haven't gotten yet I don't feel cramps I don't feel nothing. I'm suppose get my period 28th of dec should I just wait. I'm breast been hurting and I have been going to the bathroom more n more I can't sit down more then 20 mins and I'm running to the bathroom to pee. Please help me