you can die after miscarriage? WHAT!

So i had a miscarriage for 2 weeks ago and one of my family she is like me friend she is 23 years old and has 2 kids she said to me 
if you TTC soon after a miscarriage there is a very high risk that you can die while giving birth! She said its dangerous and i should not TTC while pregnant.... is that true? she made me soooo aftaid 😰