Hello Dr I Have Also A Ques..my Last Period Date

Hello Dr I have also a ques..my last period date was 16 Nov and today is 21 Dec .my period still not come ...m felt some pain like in period around the date..my breast is bit paining..I tested thorough prega news one dark single line and one is very light ...after 8 or 9 min it become same..I don't want baby at dis tym ..m getting married before 6 month ...at can. I do...plz ssuggest.