OK. You need to make sure he is COMPLETELY transparent with you -- not dribs and drabs, a password here and an unlocked phone there. Your transparency plan is your firewall, between predator OW and the safety of your marriage with your husband.
And I would HIGHLY recommend that you have at least ONE form of intel, that is NOT known to your husband (for the obvious reasons).
Finally, and I know this is painful and personal, but you should really insist on a full-panel STD test, with a copy of the results going to you, before you get intimate with him. Please be safe.
