Common side effects of clomid: "With the next cycle. Clomid is a brand name for the drug Clomiphene citrate. There could be many causes of infertility in addition to ovulatory disorders, including endometriosis, tubal disease, cervical factor and others. A message to the pituitary gland to release the hormones which control the ovary. Some women have virtually no side effects. Clomiphene can lead to multiple ovulations, and hence increasing the chance of twins. In a preovulatory gonadotropin surge and subsequent follicular rupture."