I had a scan at 34weeks with DD2 and was told she was 4kgs i had her two weeks later and she was 3.2kgs. They are normally 10% wrong either way and they can be up to 20% wrong! Just plan for your baby huni. Dont worry about the size. Your body new how to grow it why wouldnt it know how to birth it!

Happy birthing and i cant wait to read your birth story!