First thing is you need to find and wipe any copies of all of these pictures. Your husband has a real problem and even after you separate and ultimately divorce if he still has any he will be sharing them. I wouldn't be surprised in the least if he escalated to uploading them to porn sites.
Your husband is a rear breed of creepy. He is addicted to these behaviors, he won't stop and will probably get worse. You might even need to get law enforcement involved. Get the pictures and do some google image searches to see if there are any publicly online already.
Get to a lawyer immediately.