What should I do? Pregnant & working, but boyfriend won't get a job.

I am 6 months pregnant and have been with my boyfriend since February. We are both very excited to meet our little boy.:) I have a full time job and go to college full time to be in the medical field. My boyfriend has had 4-5 jobs within a 5 month time frame and has been out of work for 3 months straight. He says he's looking for a job, but I don't know what to think. He gets touchy when I ask him. I love him and told him that we couldn't get married until he's had a stable job for 2 yrs. I try not to pay for everything so it can motivate him, but I feel like I'm his sugar momma. I need him to help support our child. I don't want to raise 2. Should I ask for a break? Just so he can focus on finding a job? I dont want anyone else, but I need things to change.