need some real life advice..please answer honestly ......ANYONE??? 😐

I'm currently debating having another baby. My first was a normal pregnancy but my second I had antibodies that were attacking her. We monitored and did ultrasounds and the antibodies never actually did anything- she never even had jaundice!! But I do not know my titre. My doctor says it's risky but has never said not to. I feel like I'm so lucky with the kids I have. I do not want to foster or adopt but I really would love a third baby. Is it risky to try? Am I just being selfish? I would be so upset if anything happened..and these rare antibodies are so unpredictable....what should I do?? 
Update; not RH. They're antiKell antibodies and there is no shot. There's nothing they can do and no way to prevent them . All they can do is monitor and or intrauterine blood transfusions.