Please help...

I have been with my husband for 6 years married for 2 years in a few days I'm also 15 weeks pregnant with our first baby. I had bleeding so I got told no sex etc. I know some people don't class porn as cheating but I am 100% one that does. My husband knows & supports this! Promises that he isn't one that is interested in doing that & would never do that to me from day one. (Promises are like our trust thing & he is the ONLY person in my life I have EVER trusted) My husband is in the military so goes away all the time & is getting deployed for 4 months in 1 week. We are away on holidays a few hours from home this week before he leaves. I just upgraded my phone & he has my old phone. I was looking for a photo of a receipt I had taken before he started using my old phone & came across DIRTY photos in the "deleted folder" women with dildos etc. I am so hurt! I feel so betrayed! I don't feel like I will ever look at him the same or trust him ever again. I honestly don't know what to do or how to deal with this situation. My therapist is on maternity leave for a year & I have no one. Please please help me!!