Pregnancy symptoms or no???

So November 28th 2015 my boyfriend and I had unprotected sex (of course with ejaculation) I've been cramping, sore nipples, and every now & then I have like pulsating mild pain in my vagina & AF is due December 20th could I be pregnant? Also my ovulation date was December 5th???? Much advice needed 🤔😬😁😳
PLEASE‼️