Clomid is truly an oral drugs that can be used to trigger ovulation. It really works by blocking estrogen receptors at the hypothalamus, which is an important "hormonal control centre" for the figure. Whenever this happens, the hypothalamus is stimulated to release follicle exciting hormone (FSH), and luteinizing hormone (LH). These are the naturally taking place ovarian stimulants, which prompt ovulation in a normal cycle.