No judgements please

I had ppd and ppa, I don’t feel like I was in my right mind sometimes. now that I’m 16 months pp I’m starting to feel a bit clearer. When I got pregnant, my boyfriend was less than pleased and wanted me to get an abortion. I thought about it but ultimately I didn’t end up doing it. He didn’t want a baby so we split up. He contacted me about 12 weeks into my pregnancy, wanting to get back together but still didn’t want a baby. I, of course, said no. I knew from then, I’d be doing it completely alone. He never contacted me after that until my baby was 3 months old. Only he asked if she was actually his. This is the part where I wasn’t thinking clearly. I told him no, just so he’d leave us alone. Fast forward, my daughter is 11 months old and I see him in a store, with a newborn!! I’ve just been feeling super anxious about this. My daughter deserves a father but I’m not sure if I should reach out to him or not. He’s engaged to another woman now and I sort of feel weird about it since it’s been so long. Also, I’m not even sure if he would want to be a part in her life at this point since he sure didn’t at the beginning. Should I reach out or just keep things like they are?