Pregnant with 19 year age gap

Hi everyone! I just found out i’m pregnant (today!) with my partner who is 19 years older than me. I’m nervous to tell him because I know he wants a child but I am still in shock about everything and freaking out about our age gap 😰 i’m scared that one day he won’t be here to take care of our little soybean. Is there anyone out there with a similar story?