there was a tip bit in the paper the other week were someone had done a study ( of who I have know Idea) where he worked the best time of day for both enjoyment and to concive is 5pm dont know if its true I have three kids and I can tell you now none of them would have been made a 5 pm LOL but give it a go if it works let us know I might just use it next time to have number 4 LOL