Sorry op.
You have every right to feel a whole range of emotions, because this goes right to the heart of our identity. How do I trust others, how do I trust myself, how can I trust anything, how can I protect myself, protect others, now/future.
I was a senior HR manager that unfortunately had to deal with several cases of employees accessing legal but indecent images at work, and a couple of cases of criminal activity outside of work ultimately resulting in custodial sentencing (and therefore dismissal). I was fortunate to be supported by the police and/or our own security team in dealing with the images. The hardest part by far was supporting the managers in dealing with their feelings about the employee. Most were just in disbelief, some in absolute shock. Later, this became a feeling of loss, like a betrayal or bereavement.
I echo what pp have said. Be gentle with yourself, and recognise this will take some time to process.