I had a uterine ultrasound with saline done on October 26 (CD 5) and now on CD 13 I had some very light spotting when I wiped. Does anyone know if this is normal a week after the ultrasound? I thought all the saline had already came back out because I didn't have any drippage after the first day. My cycle stopped on CD 4 and they did the ultrasound on CD 5. Could the saline just stay up there and not come out for a week? Not sure what would cause this.