Of particular concern are environmental chemicals, such as certain pesticides, aldrin, dieldrin, PCPs, dioxins, and furans, with estrogen-like effects. Although tests of single chemicals containing estrogen have produced mixed results, a study showed that the effects of combinations of these drugs can be very harmful. Studies on the effects of electromagnetic wave emissions, including those from computer displays, have been inconclusive. Nearly all monitors now comply with guidelines that reduce emissions and laptop computers, which use liquid crystal display monitors, are completely safe. In any case, women should avoid the side and back of computers where wave emission is strongest and sit as far from the front of the screen as possible.
Depression is very common in women who are trying to become pregnant.
In fact, depression may have a direct effect on hormones that regulate reproduction. In men, sperm defects are usually responsible. Female infertility is more complex. Although PID can be a result of nonsterile abortions, use of an IUD, or a ruptured appendix, most infections are caused by sexually transmitted diseases. Gonorrhea is responsible for most of the remaining cases.