Reduced fetal movements-28wks?

The baby settles into head down position around 30 weeks... I can only speak from experience as all babies are different. My baby has been active this whole time, even after i was told she was on the large side, however, since I hit 38 weeks...All that has changed, A little nudge here, a puch there, but nothing like before. I figure she is just wayyy to big now.