Diagnosed with complete placenta previa at 13 wks 2 days!!

Rachel
Had an ultrasound today..baby is measuring right on target and looking great! Heart rate was 166..but they found that I have complete placenta previa!! I'm a stressed out mess..Dr says it will more than likely correct itself but what are some affects from placenta previa? I'm soooo nervous they I'm gonna lose this baby..😢 (only 13 wks 2 days)