So I went to the hospital two days ago for some strong cramping, no bleeding, to which they just told me it was round ligament pain and take Tylonol. When I looked at my results from the hospital later online it said my placenta was covering the os and I had a previa. The doctor in the ER told me nothing. Well three days before that I had gone to the hospital (I was in an accident on the freeway, we were able to drive away) to make sure the baby was okay and I had no placenta abruption or previa with those results. So I'm confused on how it went from not covering my cervix to covering it in three days. There is no abruption so I'm just confused and not sure if I should be worried or not. Has anyone here had a similar experience or just a previa?