Husband and porn

So today I caught my husband watching porn. I'm pretty upset about it. Mainly because I'm 23 weeks pregnant and for weeks my husband has been distant and not touching me or paying any attention to me at all and never telling me I'm beautiful or anything nice for that matter. He isn't being mean or anything but it feels more like a roommate not a husband. He says he sees nothing wrong with what's going on but I'm hurt by it and he is being mean to me about it. I just want some advice please  This is our second baby btw.