I can't help but not like my man :(

I am just not attracted to my man anymore. Not so much looks but personality. I'm pregnant with twins now 21 weeks and thought he would of help me more and make me feel better with all of that. I'm scared for my future with him. He is lazy and doesn't help with duties unless I ask but then he complaines about it. I'm so scared and feel like he isn't ready to be a dad let alone for two of them :( yes he works but only enough for his bills. He isn't taking it serious about getting another job or better paying one . He has know of me being pregnant for a while now and has not changed. I just want to cry because they are my kids and I am just scared I'm going to end up with a loser. When he comes home he thinks it's ok to just to nothing and expects me to have dinner ready for him I just want to cry :(