Good afternoon dr My wifes lmp was 17/11/19 but during first trimester scan gynae said that baby not developed acc to dates rather it developed 3 weeks later so she modified it to 9/12/19. Is it possible ? Can Dr change LMP? i want to know this because i had heard that in 9th month expected mother has to do work that put pressure on public bone like stairs climbing,sweeping n others . Im confused whether to count 9th month from 17/7/20 or 9/8/20 so that i can start those works. Also when can i know that ill able to deliever through natural or c section