Considering where your H is at and what he's doing? I would leave him out of it. My first thought was, "well of course you should call him!" Then I thought some more. That's something married people do. He's off with OW. Who knows how he will react? Right now, you need to care for yourself. If you run the risk of getting a hurtful response, then don't do it.
I wish so much I could help out...you poor thing. Will definitely be praying for you and your family tonight.