I need cheap fertility tests, wheres the best place to find them on line?

No such site. Fertiltiy testing is very expensive. You may start to chart your menstrual cycles and see whether you ovulate monthly. Ovulation testing kit is availbale over the counter. Semen analysis, cheaper than most of tests, should be done first. Some of infertility clinics offer a first visit/counselling free. Call around in your area.