32+2 weeks pregnant, consumed by depression

I have struggled with clinical depression my whole life, but didn't get treatment until 3 years ago. I had a stay in behavioral health, apparently my mother got tired of me talking about suicide. I have felt like most of my life that suicide was my only option. I have come a long way in my treatment but I have really struggled with my depression during this pregnancy. I have tried to hide it the best I can. My husband got into an argument last night and all day today I have been sitting at my desk crying, trying to get through the day. Work is really the only place where I do do a good job. Or so it seems. I have been sitting here all day telling myself how worthless I am. How stupid I am. How can I end my life with suicide pregnant? Can't. How can I end my life with a dependent newborn? Can't. I have a life sentence into misery. I am hoping at this point I hemorrhage out and die giving birth....