My boyfriend wants to break up with me while I’m pregnant with our second child.

I'm nearing 30 and expecting my second child with my current boyfriend. He's contemplating leaving me because he can't let go of the past. **The Backstory:** I met him at a bar one summer, and we initially had no intention of getting serious. After he had a run-in with the law and seemed to ghost me, I felt confused about our situation. I had a previous relationship that left me traumatized after my ex let me take the blame and serve time for him. While dating him, I also kept in touch with a guy I had casually dated a few times. He's hurt because I wasn't honest about my past and the fact that I was seeing someone else. I withheld information in hopes he was also taking things seriously. In past relationships, I've dealt with people saying one thing and doing another. I was unaware that my boyfriend was a virgin when we first met, which he later admitted. He regretted moving in together after discovering more about each other's histories. We decided to cohabitate when I got pregnant with our first child. He's fixated on my past relationships, an aspect I'm not proud of, but I've worked hard to embrace myself despite those low points. He connects his lack of motivation to my past, claiming he can't bring himself to work a traditional job for someone he believes doesn't deserve it. He often mentions feeling unsuccessful and blames me for holding him back. While I pay for my car, he recently started contributing to gas and covering our grocery expenses, but he refuses to help with my bills. I don't ask much from him; I only need assistance with cleaning and occasionally watching the baby. We both work part-time and are trying to figure out our next steps. I do my best, but it's overwhelming, and I get frustrated when he doesn't help out with chores. I only react strongly when he’s disrespectful and reminds me of my past. I’ve told him he’s free to work as he wishes, but going out to bars while I care for the baby isn’t fair, especially since he wouldn’t appreciate it if the roles were reversed. He insists he's not the one with a troubled past. Once we officially became a couple, I cut ties with the other guy and dedicated myself to him, though I sometimes question whether I made the right choice due to his actions and words. It feels like he forgets that every person carries their own past. He also takes medication for anxiety. Now, with our second child on the way, he seems even more intent on leaving. I'm at a loss about what to do next. This situation leaves me feeling increasingly depressed and confused. Am I the problem? He claims that no man wants to be with a woman with a high number of past partners and that I’ll struggle to find someone else. I've transformed so much—I’m become the person I always aspired to be: a devoted mother and a supportive partner, even if I wasn't perfect from the beginning. Despite everything, he acknowledges that I’m a good mother, which is one thing he cannot deny.