Low Placenta questions

So I had my anatomy scan yesterday and found out the placenta is very low. I'm almost 21 weeks, and my doctor said from this point it can either grow up or further down. And in the case of it growing down she said vaginal birth won't even be an option. I'm terrified of having a c section because you are awake while being cut into and I'm wondering if anyone else had a very low lying placenta and it end up growing up and had a vaginal birth with no complications?