Clomid has a pretty good success record for aiding in pregnancy. :>) It gets those eggs going or sure. Timing is something that is individual to the prescribing doctor. Some women take it days 3 to 5 of their cycle and others take it a few days later than that. You should talk to your own doctor to see what they recommend. Good luck to you and hope it works for you soon. (Oh, and I have several friends that clomid aided in the pregnancy journey).