Anterior Placenta

At my first scan, about 9 weeks, the placenta was posterior and now it's anterior, at 19 weeks 2 days. I did have a couple episodes of bleeding and could feel the baby move, but I have noticed recently that the movement I felt then has been decreased. Had me very worried, but now I know it's due to the anterior placenta. Frustrated, want to know my baby is doing ok, but my anatomy scan today put me at ease for we have a happy healthy baby boy.