Placenta previa?!...

I just found out about a week ago that I have placenta previa... Which means that my placenta is lower then it should be... I'll be 15 weeks tomorrow.. So I was told no heavy lifting and no crazy house work and def no sex until I get cleared on my next U/S which is July 23rd... Has any of you ladies have placenta previa but turned out to be ok?!... My Dr said that if my next appt I still have placenta previa I will have to get a scheduled C-section.. :( which I had my first son vaginal... So I'm really really scared and Nervous about my next appt... So in just praying everything will be ok... And I will also be finding out if I'm having a boy or girl...