Toxic and abuse relationship

Two days ago I decided to walk away from my abusive toxic relationship. From the get go, I allowed myself to be with a man living with his baby’s mother “not together” supposedly. He would treat me like I wasn’t good enough to meet his child. He would hit me when frustrated with me, he would isolate me from friends and family. I found out I am pregnant today, I am terrified of my future. I just got my nursing license and a new job working in a nursing home. I already have a son, that share custody with his father. I am not currently stable, living with mother. Until I get on my feet more, I am completely feel terrified and alone, I don’t want to even tell my abuser. I feel like I should protect myself and this baby. Likely a single mom, I don’t want to struggle. I’ve been struggling. I also have BPD, and its completely destroyed certain areas of my life. I’ve been on the path of healing..just feeling lost now..