Placenta Previa

Went for my 20 week scan yesterday (20w 5d) - and my doctor reconfirmed that I still have placenta previa as diagnosed at my 13 week scan. I will have to have a c-section at 37 weeks, (which is fine) but getting there makes me so nervous. I haven’t had any bleeding issues as of yet. I’m mostly worried that I will have to spend a lot of time in the ER if it does happen, with a possibility of preterm birth if it happens more than 2x. Doc says there’s pretty much slim-none chance of it resolving on its own, as my placenta is smack dab in the middle of my cervix opening. I guess I’m just looking for some positive vibes here 💗