Ultrasound tests on the seven surviving octuplets found no bleeding on their brains, doctors said Tuesday. (Bleeding of that type can lead to the chance of developmental problems such as cerebral palsy.) Meanwhile, the babies’ mother, 27-year-old Nkem Chukwu, could leave the hospital on Wednesday for the first time in three months. “She is very weak, having been here for such a long period of time, but I think she’s making slow but steady progress,” said Dr. Brian Kirshon, who delivered seven of Chukwu’s babies Dec. 20. The first arrived Dec. 8. Doctors hope her babies can join her at home by their due date of April 1. All but one of the infants were born 13 weeks premature.