Human chorionic gonadotropin (HCG) is a hormone produced by the placenta of a pregnant woman. Buy Ovidac 2000 iu is noticeable in the blood and urine after ten days of fertilization and becomes the basis for pregnancy tests. The presence of HCG in a woman’s blood signifies that she is pregnant. If you are facing infertility issue, then you can take HCG medication in a form of medicines, injections, oral drops and pills.