the guy I’m seeing doesn’t want me to have our baby

I’m 6 weeks pregnant today. The guy I’m with wants me to have an abortion. We have a weird relationship where we aren’t “officially together” yet we spend most of our time together and act like a couple. I think I want to keep my baby but I don’t want to drive him completely away or make him mad if I do. I just feel like having an abortion will completely destroy me and I’ll spend the rest of my life grieving the loss of this child and regretting the decision. I honestly feel like it would break me, I don’t think I’m mentally strong enough to handle the grief of killing my child. I do have an abortion scheduled next week, but I also have the first ultrasound scheduled prior and an appointment with my therapist. Ultimately, I will not make a decision until I speak with my therapist and a doctor. Would it be wrong for me to keep my baby despite him not wanting me to? Even if I give him zero obligations to help, be in the child’s life, or not have to pay child support? If he does get mad, how can I handle that situation? Should I just completely leave him and focus on the child I’m about to have? I’ve thought about adoption at the very least, but I 100% can’t get this abortion without it messing me up mentally. I already have problems with my mental health as it is. I know the choice is mine and I shouldn’t be asking strangers on the internet what to do, but some outside perspective and advice is much needed.