This is produced in the trophoblast cells of the placental tissue. Hyperglycosylated Oxymetholone 50mg pills is the main form of hCG during the implantation phase of pregnancy, with invasive molar pregnancies, and with choriocarcinoma. Gonadotropin preparations of hCG can be produced for pharmaceutical use from animal or synthetic sources. Some of these are medically justified, whereas others are of a quack nature. Blood or urine tests measure hCG. These can be pregnancy tests.