I am 36 years i have 28 days menstrual cycle. My LMP is 6th Nov i didnt get periods in dec i did pregnancy test on 9th dec it was negative then again i did on 12th dec then it was negative. We had sex on 8th day of menstrual cycle after that didnt have. I dont want to concieve rightnow becauae of job issues. My dr gave me duphaston 10mg 2 tabs twice daily for 5 days i want to know when i can get withdrawl bleeding and can i get withdrawl bleeding even if i will have pregnancy?? Please help me