32 wk pregnant but measured 34wks??

[aichi]

I had a growth scan last week (as my midwife thought the baby is a few weeks smaller...) but when I had a scan I was told the baby measured a week and a half bigger than my due date i.e 34 weeks instead of 32 wks...

Does this mean the baby will be fully formed and ready to come out (!) earlier?
or
does it just mean I have a slightly bigger baby? but my due date will stay the same??

You should probably ask the sonographer, but it does sound like you are further ahead than you thought. They usually say 'bigger baby' rather than talk about being further ahead in terms of weeks.