I Have A ENDOMETRIAL STRIPE WHICH MEASURES APPROX 13.3 MM

I have A ENDOMETRIAL STRIPE WHICH MEASURES APPROX 13.3 MM ON PELVIC SONOGRAM. THE POSTERIOR FUNDAL MYOMETRIAL MASS NOTED ADJACENTLY MEASURES APPROX. 1.6 X 1.6 X O7 CM. THE OVARIES ARE NOT SEEN. A MINISCULE NABOTHIAN CYST IS SEEN. IN FEB 2014 PREVIOUS PELVIC SONOGRAM MEASURED 3 MM, CURRENT ENDOMETRIAL STRIPE MEASURES 7 MM DIAMETER. I HAVE ON AND OFF STOMACH PAIN AND GOING FOR BYOPCY ON THURSDAY. I DON,T KNOW WHAT THE BIG WORDS MEAN AND CAN YOU EXPAIN IT TO ME AND WHAT KIND OF TREATMENT THERE IS FOR THIS