Would rather have sex with myself

So I love my husband I truly do but I would rather watch porn and have sex with myself. I have never been able to "get off" by a penis. I am not loud in bed and I don't like to play around before I would rather just have sex and get it over with. I'll fake it so my husband gets off faster. But when I'm alone it feels so good and I can go at it for what feels like forever. I feel bad for my husband I wish I could get my sex drive back. I wasn't always this way I used to love sex and would do it many times in a day. I'm not the type o role play and I don't like him looking at my body. I was never over weight but I had a kid before I met him and my body changed so much I didn't even like to look at myself I only cared what the scale said. I'm pregnant now and I heard some say they are very horny while they are pregnant but I'm not. Does anyone else feel this way?