Hi I Am 29 Yrs Old Married 4 Yrs Completed

Hi I am 29 yrs old married 4 yrs completed as on sep 2015. after the marriage only I had face late menses. But last Jul 10th my lmp that flow was very less and prolonged to 15 days. I scared i consult gynac doctor who prescribed Tamik BC with multivitamins. I took that medicine for 2 days. It has stopped. but now not get menses almost 75 days I had pain on abdomen` i afraid pls suggest me.