feeling gross, disappointed, indifferent TMI

So I'm pregnant now and my husband has been very flattering to me and everything but as far as sex my belly now gets in the way and I'm feeling like he's not as turned on? he will ask me to turn around (from behind) during sex, and I have to wonder if it's because of my belly?! Idk!! But then today he was really horny and he asked me if we could spice things up and me trying to please him said yes so he asked me to put on a porno for us to watch... I chose a lesbian porn (I'm not a lesbian but it's a lot more in tune with the female body and not as rugged as other porn imo) we watched it together and he was telling me to pretend I'm one of them & etc. so anyway we finished and now I'm just utterly disgusted. I know that was wrong, I'm not a lesbian, I feel gross. I don't even want to have sex anymore. Idk. We are married and everything but I just feel like we went there for no reason (I didn't need that). I told him politely after how I felt and he apologized and asked us to go back to normal. He said he doesn't do this more often because he fears God but he would be lying if he said he didn't enjoy it and that he finds it sexy. I'm just upset, I'm not comfortable with my husband watching another person on TV and at the same time I know he's human. I fee like I'm at a conflict with myself here. Any Christian ladies have anything I could hold onto? Or am I being dramatic? Overly sensitive?