Retake GMAT vs Round 3

Hi Guys, Today I took my GMAT and was devastated by my 650 score (Q: 44, V: 36). I wanted to apply to HBS, Wharton, LBS and INSEAD, but all of the schools are clearly at risk now. Given I do not have enough time to retake and still apply for Round 2, I was considering Round 3. Could please anyone ad...