Human Chorionic Gonadotropin
) is produced by placenta during Pregnancy
. It nurishes the fertilised egg.It can be detected in blood after 11 days after conception and in the urine 12 to14 days after conception.It wii reach peak level in first 8-11weeks then decline after remainder of pregnancy. 85% cases the level will be doubled every 48 to 72hours. A low HCG level may present in normal healthy baby. Level 25ml is positive in pregnacy. As mensioned low HCG may be present in with healthy baby it should be more accurate to have ultra sound
scan in 5-6 weeks of pregnancy rather HCG Test. There is no relation of HCG level and over weight.