I have a REALY LOW PAIN TOLERANCE. How will i ever cope with the pain of labor!-?

You will be fine! Most women do not even feel labor until they are already dilating, in fact you are probably already dilating now and don't even know it! The reason they say to wait until a 4 (not a steadfast rule by the way) is that most women don't even feel the contractions until they are at least that far. Good luck and congrats!