I only started them last week on day 1 of my cycle ( im now on day 4 ) and was wondring how long till they do their job - do i need to wait until Sept / Oct for our first attempt as Aug will only be about 3 weeks of having taken them and been on the diet about 4 weeks by then so think maybe i should hold off in Aug to give everything a chance to work or is sometimes a 2-3 weeks short sharp diet and weight loss enough ?