How do we work through this?

My husband and I just got married a few months back. We’re currently sleeping in bed with our child but that can we avoid when it comes to sex. Regardless, I don’t find him sexually attractive, at all. I would rather sleep with someone else than my husband. Which Is disgusting to me, but just been life. I have not cheated, nor would I like to. I just want him to actually be able to get me off. When we DO have sex, it’s maybe once a month if I initiate it. And then he lasts maybe 5 mins at most and I’m not anywhere near getting off. It’s frustrating!