Deceased mother rant

Kiara • My name is Kiara. I'm 23 years old. This is my first pregnancy and I'm super excited
My mom died 4 years ago when I was 19. I saw her take her last breath. My SO said today that I didn't care about my baby because I'm crying over something I can not change. He still has his mother. But my baby won't no my mother because she's not here. He said I'm stressing the baby out because I'm being selfish and won't face the fact that she's not here. Just because I miss my mom and wish she was here does that make me not care about my baby?