I am 33 weeks pregnant. According to my antenatal GROW charts, the baby has been on the 50th centile throughout my pregnancy. 10 days ago, I got a growth and reassurance scan privately, just because I wanted to check things were ok (no ultrasound scans between 20 - 36 weeks). On the ultrasound scan, all was ok, and they said he was on the 50th centile for growth velocity. 2 days ago, I had my fundal height measurement with my midwife, and she calculated the baby was on the 90th centile for growth. I feel a bit alarmed that he went between 50th and 90th centile within 8 days. I understand that the two measurements are not comparing like for like and the fundal height is more of a rough tool. Has anyone experienced this? Any advice what to do? I asked for another scan to make sure he was ok, and they said it was still within normal limits so they wouldn't do one...