When is it my turn...

I'm tired of working I'm tired of coming home exhausted, I'm tired of barley being able to drive home becasue im so tired, I'm tired of driving a hour every day, I'm tired of working 12 hours. When is my break becasue I'm ready to break my boyfriends been in and out of jobs for months now going weeks without working when is it my turn when will I be able to depend on someone else I just want a break. I've called in twice this week, I should be saving up my time for my maternity leave i feel as if I'm at my breaking point I just wanna quit my job and tell my boyfriend I got fired of somthing weve had our own place for a month now just so happens he loses his job before all the Bill's are paid I'm stuck paying everything literally with no help... I'm 21 weeks and just looking for a break when will it be my time....