According to my last lmp aug 20th, I am 48 days pregnant, but as I had bright red little bleeding one day in 4-5th week, I rushed t the doc, she did ultrasound and that I was still 5 weeks according to ultrasound, fount yolk sac, but asked me to come bac after 10 days for heart beat. I am taking duphaston twice a day. Pls help. C