I’m 40w+4 and have my gestational diabetes completely diet controlled.

I’ve always had a few readings that were pushing the limit but nothing crazy (and nothing that a quick walk and glass of water didn’t fix)

but over the last week my glucose readings are suddenly flawless ??? I’m eating the same as I was two weeks ago —I’m a creature of habit— but my numbers are way lower than usual. Is it a thing for blood sugar / GD to improve at the end of pregnancy??