<unk>  is the administration of medication, generally progesterone, progestins, hCG or GnRH agonists, to increase the success rate of implantation and early embryogenesis, thereby complementing and/or<unk> ing the function of the corpus luteum. It can be combined with for example in vitro fertilization and ovulation induction. Progesterone appears to be the best method of providing<unk>  phase<unk> , with a relatively higher live birth rate than placebo, and a lower risk of ovarian hyperstimulation syndrome (OHSS) than hCG. Addition of other substances such as estrogen or hCG does not seem to improve outcomes.
Luteal support
Spinal adjustment
Spinal mobilization
Spinal manipulation
Intrathecal pump
Epidural administration
Pelvic massage
Pelvic binder