Stressed out

i have been involve in this relationship for the past 3 years, and now im pregnant my boyfiiend totally ignores my needs, im six months pregnant and yet i am not getting the love i want from him when he comes home from work regardless or the time he spends the majority of time watching television. ive thought of leaving him for the past months but even though he knows that there is a possibility of him beign single he still dont even make an attempt to save our relationship. another thing is he is so obsessed with pleasing people that he sometimes is 2-3 mix personality.. ive really had it its just that its our first baby together so i kind of wanted a complete family but now i wonder if its worth the stress . today i had a craving for ice cream and i cried for it and he didnt buy it because about 2 days before we went town and i craved a small cone from mac- donals , he said i schould of asked for a big one instead.im afraid to stay with him because the regual unhappiness may cause me to loose my baby, please help me