It certainly looks like you've popped out a bit more I can't see too much of a difference in height, people have been telling me I look low for weeks now I'm 33wks today.
I think if it's you're first it just means baby is starting to engage and drop down with first babies once they engage they stay there in preparation for labour, but that could still be weeks away yet.
Second time round though baby bobs in and out all the time Aparrantly which is probably why I've been low for a while xx