Hi there. Usually IUI is performed if there is sperm count of.more than 1million but for successful intrauterine insemination 10million sperm count is needed, of which atleast 5 million should be motile.. lesser count less chances of success.. after IUI please rest well for initial 4-5 days, then have more nutritious foods, no heavy works or stress, only light walking is allowed, have positive thoughts, be calm and relaxed.. hope this helped you..