I'll be 35 weeks pregnant tomorrow & have been active all day now I'm getting sharp ripping like pains on my lower left side abdomen?

CALL YOUR OB NOW !!! U shoudl have already called you ob, u need evaluation, if you were my pt i would send you staright to the labor room for evaluation, u need to make sure u are not in premature labor and everything is ok inside the uterus with the baby and placenat don't delay.