Lost interest, need advice

My fiance was excited about the pregnancy at first, occasionally rubbing my belly, trying to feel him move. Im almost 29 weeks now and he barely touches my belly. Note: this baby was completely planned so its not like he doesnt want it. Now he just seems to not care, he has no interest in my belly or anything. He doesnt even want to go to any appointments. Im afraid he doesnt want the baby anymore, and that when he is born, its going to be like my first child where the dad was barely there....he even started treating me differently. Sends me on tasks that technically i shouldnt be doing, things that require heavy lifting and all. And when i mention to him that i cant do those tasks because im pregnant he tells me to stop complaining, or will argue till i give in. He use to be supportive of me. Especially since i have no support from my family, small amount of friends, and thats about it. I am even planning and paying for my own shower. I feel like i have no support, and like i cant even be happy about my pregnancy. I cant believe its like this, especially since we planned him and we were so excited...idk what to do, but its making me feel so depressed. I just feel like crying all the time and i feel so alone.