I looked in his computer history....

So I asked to use my fiancé’s laptop so I could look up a few things I wanted to order him for Christmas. When I was done I went into the history to delete what I was looking up for his gifts so he wouldn’t know what I was getting him... I noticed that he had porn in his history from early this morning... The tags he was searching were things like “cheating”, “hardcore”, stuff like that... my heart dropped into my stomach & now I feel kinda sick. I don’t care if he watches porn & he knows this but the “cheating” tag he searched for has me worried... I’m 32 weeks pregnant with our first child & my sex drive hasn’t been there at all & it just hurts to have sex now. I know he would never cheat on me but I just don’t know how to process this information... should I bring it up to him???