Posterior Placenta Grade 0

Hi po. Normal ba na posterior placenta grade 0 for week 15 day 6? Walang sinabi of high or low lying. Naguguluhan po kasi ako sa mga nabasa ko sa google. Pero may isang ganito ang sabi: "If your health care provider determines that you have a posterior placenta, there's no need to worry. It's completely normal. The upper (or fundal) portion of the uterine back wall is one of the best locations for the fetus to be in. It allows them to move into the anterior position just before birth."