Hello. I understand your situation. Your wife suffered head injury with dangerous mechanism, which is considered a high-risk trauma, warrants immediate CT Scan of brain. But as she was
pregnant, it was not feasible back then. Now although she is asymptomatic, a underlying small brain injury can not be entirely ruled out without a scan. As 11 days have already passed, it would be better if she undergoes MRI Scan of brain, which can rule out both bleed and tissue edema. Hope this helps.