What can i do if i have low lying placenta? I had my ultrasound during my 25th weeks of pregnant..

I'm at my 29 weeks of pregnancy, i ask my doctor about it and she said it's fine as the baby grows my placenta will goes up, but it bothers me a lot since she told me that, i may go through CS if it's still low ... 😟 planning to have my 3rd ultrasound next month...