Hi, Thanks for choosing healthcaremagic. I think the mild free fluid was detected on the ultrasound scan. Mild free fluid is acceptable and not of much clinical significance. If the baby is fine, there is nothing to worry. Just be careful and don t do much of exertion as you already had bleeding during pregnancy. Take as much rest as you can and you should ave a healthy baby. Cul de sac is pelvic cavity where usually mild free fluid is seen so it is nothing to worry. Little amount of free fluid can be present there. Hope it sorts your problem. Regards, Dr. Pankaj Nagori Specialist Radiologist