I'm 14 and I have a wobbly tooth..I think all my baby teeth have gone..?

It probably is a baby tooth that you've just forgotten about. I still have a couple at 24 and one dropped out not so long ago. Everyone is different and I reckon it'll just fall out and you'll be fine. Alternately, it'll just fix itselt again. Don't stress it. See how it goes, if it doesn't hurt it'ls fine.