Trying to move on

I broke up with my boyfriend which is my twins dad almost 3 weeks ago. I'm now 34 weeks pregnant & 4 weeks away from delivery. I have been very much at peace but I hate that I haven't had the support I needed from him. I was taken out of work at 4 months and he had done nothing but stress me and accuse me. I finally got tired of it and ended it. We still communicate once a day but nothing serious. I was thinking about having my mom in the delivery room since I am scheduled to have a cesarean. I dont want to take that away from him but my parents and my family have been the only real support thru this journey. I told him I am giving them my last name and that caused an argument. We are not together and I do not plan on marrying him because he has shown his true colors. I just want to know shoukd i reconsider the last name and my delivery support options.