Caught husband watching porn!!!

Ladies help me out!! Idk what to do or how to approach the situation!!! Today I was at the hospital with my dad while he was having surgery. Well I get home & I’m looking at my husbands pictures on his phone that he took of son today driving the tractor while I was gone. Well I ran across an apparent accidentally screenshot of him watching porn at 2:25pm!!! I have asked him before if he watches porn cause our sex life is not good at all & he straight up said no. I asked has he ever he said not since the beginning of our relationship which was 8 years ago!!!! He has no idea I know & idk what do or how to even feel!!!😭😭😭