Clomid is a synthetic estrogen that is not as potent as your own body's estradiol.
When it binds to estrogen receptors the stronger estradiol can't bind to them.
In the hypothalamus this blocking action causes the gland to release more gonadotropin releasing hormone.
Which in turn causes the pituitary to release more gonadotropin (leutinizing hormone,LH)
Which in turn causes the gonads (testes) to produce more sperm and testosterone.
While on it, I found that my girl was really wasting her time tweaking my nipples.