Need advice please

I'm currently 27 weeks pregnant and married for 8 years with a 6 year old daughter. Recently I was using my husbands phone and found that he has visited an escort agency website with local girls in out area. I confronted him and he said he was curious and just looked on those sites at the women. I'm am devastated and hurt by this and I don't know what to do. I don't know what to believe because I know he watches porn but why would he visit an escort agency website if he had no intentions of hooking up with one. Am I over reacting? Please no judgements and negative comments, I'm looking for some advice and help as I'm really in a bad space right now.