Tips for Pelvic Rest and Relationship

I'm 20 weeks pregnant and have been put on pelvic rest. (This means no sex.) This couldn't have come at a worse time. About a month ago I had to abstain from sex due to a bleed, and then my husband left for the Army for a month. I found photos of another woman on his phone when he returned, and he did admit that not being able to have sex for a month contributed. Now I am supposed to go a minimum of 2 months without having sex with him. We're in counseling about the phone issue, but I have some real anxiety about not being able to have sex with him when we already have these issues. Any tips on what you would do as a wife who wants to keep her marriage? Is the anxiety something I should let go of? Should I try and please him in other ways?