Currently, I am 4 weeks pregnant and still have a cyst on the left ovary. I had brown bleeding for 2 days and then I went for an ultrasound but the doctor said nothing. On the 3rd day, I still had brown bleeding, a few drops all day, half of the daily sanitary napkin. So doctor, can you tell me if brown bleeding at 4 weeks pregnant is okay? What should I do, doctor? Thank you.