Messing with your bodies hormones is never a good thing, especially with off label usage, even with a doctor overseeing. I am sure you had to sign some sort of paperwork, likely absolving them of any legal damages if something goes wrong.
OP, do some reading, on what hCG is used for medically, vs it’s “magical” weight loss effects.
Excert from linked article:
Many bodybuilders, unfortunately, are still of the opinion that hCG helps them become harder while preparing for a competion by breaking down subcutaneous fat so that indentations and vascularity are better exposed. The hCG package insert states clearly that hCG has no known effect of fat mobilization, appetite or sense of hunger, or body fat distribution. hCG has not been demonstrated to be effective adjunctive therapy in the treatment of obesity, it does not increase fat losses beyond that resulting from caloric restriction.
Excert from attached link
A controversial usage of hCG is as an adjunct to the British endocrinologist Albert T. W. Simeons‘ ultra-low-calorie weight-loss diet (less than 500 calories). Simeons, while studying pregnant women in India on a calorie-deficient diet, and “fat boys” with pituitary problems (Frölich’s syndrome) treated with low-dose hCG, claimed that both lost fat rather than lean (muscle) tissue. He reasoned that hCG must be programming the hypothalamus to do this in the former cases in order to protect the developing fetus by promoting mobilization and consumption of abnormal, excessive adipose deposits. Simeons later published a book entitled Pounds and Inches, designed to combat obesity. Simeons, practicing at Salvator Mundi International Hospital in Rome, Italy, recommended low-dose daily hCG injections (125 IU) in combination with a customized ultra-low-calorie (500 cal/day, high-protein, low-carbohydrate/fat) diet loss of adipose tissue without loss of lean tissue. After Simeons’ death, the diet started to spread to specialized centers and via popularization by individuals, such as the controversial author Kevin Trudeau, famous for promotion of alternative therapies and treatments.
The controversy proceeds from warnings by the Journal of the American Medical Association and the American Journal of Clinical Nutrition that hCG is neither safe nor effective as a weight-loss aid.
A meta analysis found that studies supporting hCG for weight loss were of poor methodological quality and concluded that “there is no scientific evidence that HCG is effective in the treatment of obesity; it does not bring about weight-loss or fat-redistribution, nor does it reduce hunger or induce a feeling of well-being”.
Controversy about, and shortages of, injected hCG for weight loss have led to substantial Internet promotion of “homeopathic hCG” for weight control. The ingredients in these products are often obscure, but if prepared from true hCG via homeopathic dilution, they contain either no hCG at all or only trace amounts.
The United States Food and Drug Administration has stated that this drug is fraudulent and ineffective for weight loss. It is also not protected as a homeopathic drug and has been deemed an illegal substance.
The weight loss indicated by individuals on an “hCG diet” can be attributed entirely to the fact that such diets prescribe a consumption rate of 500-550 calorie per day, or approximately one quarter of what is commonly accepted as the daily recommended value for a male adult of average build and activity. Further, double-blind studies note no decrease in appetite by those taking hCG versus individuals on placebos and have offered no evidence that individuals taking hCG are more likely to lose fat than lean tissue. Long-term results caution that unlike individuals participating in a diet of, for example, 1100 calories per day, those on a 500 calorie per day diet are unlikely to develop more appropriate eating habits and will gain weight more quickly after the diet has completed.